> ## Documentation Index
> Fetch the complete documentation index at: https://docs.modulex.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Twilio Integration for AI Agents & Workflows

> Cloud communications platform for SMS, voice calls, phone number lookup, and verification via the Twilio REST API.

{/* Self-hosted logo — build-time vendored from modulex.json / Iconify (see scripts/lib/logo.js). */}

<img src="https://mintcdn.com/modulexaillc/df8MOr-hXotYLTh5/logos/twilio.svg?fit=max&auto=format&n=df8MOr-hXotYLTh5&q=85&s=dc6aa821170d031eb0c2fa70ad2be1de" alt="Twilio logo" width="72" height="72" data-path="logos/twilio.svg" />

## Overview

Add **Twilio** to any ModuleX agent or workflow. Cloud communications platform for SMS messaging, voice calls, phone number lookup, and phone verification via the Twilio REST API (`api.twilio.com`).

<Info>
  **Categories**: Communication · SMS · Voice · Verification · **Auth**: Twilio Account Credentials · **Actions**: 17
</Info>

## Authentication

### Twilio Account Credentials

Authenticate using your Twilio Account SID and Auth Token (HTTP Basic Auth).

<Steps>
  <Step title="Step 1">
    Log in to the Twilio Console at [https://console.twilio.com](https://console.twilio.com)
  </Step>

  <Step title="Step 2">
    Your Account SID and Auth Token are on the dashboard home page.
  </Step>
</Steps>

#### Required Credentials

| Field       | Description                                        | Required | Format                               |
| ----------- | -------------------------------------------------- | -------- | ------------------------------------ |
| Account SID | Your Twilio Account SID (starts with 'AC').        | Yes      | `ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx` |
| Auth Token  | Your Twilio Auth Token from the Console dashboard. | Yes      | `-`                                  |

## Available Actions

<AccordionGroup>
  <Accordion title="send_message — Send an SMS or MMS message with optional media files.">
    ### Parameters

    <ResponseField name="from_number" type="string" required>
      The sender's Twilio phone number in E.164 format (e.g., +15551234567).
    </ResponseField>

    <ResponseField name="to" type="string" required>
      The destination phone number in E.164 format (e.g., +16175551212).
    </ResponseField>

    <ResponseField name="body" type="string" required>
      The text of the message, limited to 1600 characters.
    </ResponseField>

    <ResponseField name="media_url" type="array">
      Array of URLs of media to include. Up to 10 URLs, max 5 MB each.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "MessageResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "date_sent": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Sent"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "body": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Body"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "num_segments": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Segments"
            },
            "num_media": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Media"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "error_code": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Code"
            },
            "error_message": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Message"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "MessageResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "message": {
          "anyOf": [
            {
              "$ref": "#/$defs/MessageResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "SendMessageOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="make_phone_call — Initiate a phone call using text-to-speech, a TwiML URL, or an application SID.">
    ### Parameters

    <ResponseField name="from_number" type="string" required>
      The caller's Twilio phone number in E.164 format.
    </ResponseField>

    <ResponseField name="to" type="string" required>
      The destination phone number in E.164 format.
    </ResponseField>

    <ResponseField name="call_type" type="string" required>
      How to handle the call. Allowed values: text, url, application.
    </ResponseField>

    <ResponseField name="text" type="string">
      Text for Twilio to speak when answered. Required when call\_type is 'text'.
    </ResponseField>

    <ResponseField name="url" type="string">
      URL returning TwiML instructions. Required when call\_type is 'url'.
    </ResponseField>

    <ResponseField name="application_sid" type="string">
      SID of the Application resource. Required when call\_type is 'application'.
    </ResponseField>

    <ResponseField name="timeout" type="integer">
      Seconds to ring before assuming no answer (default 60, max 600).
    </ResponseField>

    <ResponseField name="record" type="boolean">
      Whether to record the call.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "CallResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "to_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To Formatted"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "from_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Formatted"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "start_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Start Time"
            },
            "end_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "End Time"
            },
            "duration": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Duration"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "CallResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "call": {
          "anyOf": [
            {
              "$ref": "#/$defs/CallResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "MakePhoneCallOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="get_message — Retrieve details of a specific message by SID.">
    ### Parameters

    <ResponseField name="message_id" type="string" required>
      The SID of the message to retrieve.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "MessageResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "date_sent": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Sent"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "body": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Body"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "num_segments": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Segments"
            },
            "num_media": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Media"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "error_code": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Code"
            },
            "error_message": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Message"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "MessageResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "message": {
          "anyOf": [
            {
              "$ref": "#/$defs/MessageResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "GetMessageOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="delete_message — Delete a message record from your account.">
    ### Parameters

    <ResponseField name="message_id" type="string" required>
      The SID of the message to delete.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        }
      },
      "required": [
        "success"
      ],
      "title": "DeleteMessageOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="list_messages — List messages associated with your account, optionally filtered by sender or recipient.">
    ### Parameters

    <ResponseField name="from_number" type="string">
      Only return messages sent from this phone number in E.164 format.
    </ResponseField>

    <ResponseField name="to" type="string">
      Only return messages sent to this phone number in E.164 format.
    </ResponseField>

    <ResponseField name="limit" type="integer">
      Maximum number of messages to return. (Default: `50`)
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "MessageResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "date_sent": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Sent"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "body": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Body"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "num_segments": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Segments"
            },
            "num_media": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Num Media"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "error_code": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Code"
            },
            "error_message": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Error Message"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "MessageResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "messages": {
          "items": {
            "$ref": "#/$defs/MessageResource"
          },
          "title": "Messages",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "ListMessagesOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="list_message_media — List media resources associated with a message.">
    ### Parameters

    <ResponseField name="message_id" type="string" required>
      The SID of the message.
    </ResponseField>

    <ResponseField name="limit" type="integer">
      Maximum number of media items to return. (Default: `50`)
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "MediaResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "content_type": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Content Type"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "MediaResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "media": {
          "items": {
            "$ref": "#/$defs/MediaResource"
          },
          "title": "Media",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "ListMessageMediaOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="get_call — Retrieve details of a specific call by SID.">
    ### Parameters

    <ResponseField name="sid" type="string" required>
      The SID of the call to retrieve.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "CallResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "to_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To Formatted"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "from_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Formatted"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "start_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Start Time"
            },
            "end_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "End Time"
            },
            "duration": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Duration"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "CallResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "call": {
          "anyOf": [
            {
              "$ref": "#/$defs/CallResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "GetCallOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="delete_call — Delete a call record from your account.">
    ### Parameters

    <ResponseField name="sid" type="string" required>
      The SID of the call to delete.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        }
      },
      "required": [
        "success"
      ],
      "title": "DeleteCallOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="list_calls — List calls associated with your account, optionally filtered by number, status, or parent call.">
    ### Parameters

    <ResponseField name="from_number" type="string">
      Only include calls from this phone number in E.164 format.
    </ResponseField>

    <ResponseField name="to" type="string">
      Only include calls to this phone number in E.164 format.
    </ResponseField>

    <ResponseField name="parent_call_sid" type="string">
      Only include calls spawned by the call with this SID.
    </ResponseField>

    <ResponseField name="status" type="string">
      Filter by status: queued, ringing, in-progress, canceled, completed, failed, busy, no-answer.
    </ResponseField>

    <ResponseField name="limit" type="integer">
      Maximum number of calls to return. (Default: `50`)
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "CallResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "to_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To Formatted"
            },
            "from_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Number"
            },
            "from_formatted": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "From Formatted"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "start_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Start Time"
            },
            "end_time": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "End Time"
            },
            "duration": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Duration"
            },
            "price": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price"
            },
            "price_unit": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Price Unit"
            },
            "direction": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Direction"
            },
            "uri": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Uri"
            }
          },
          "title": "CallResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "calls": {
          "items": {
            "$ref": "#/$defs/CallResource"
          },
          "title": "Calls",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "ListCallsOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="download_recording_media — Get the download URL for a call recording in the specified format.">
    ### Parameters

    <ResponseField name="recording_id" type="string" required>
      The SID of the recording.
    </ResponseField>

    <ResponseField name="format" type="string">
      Audio format: .mp3 or .wav. (Default: `.wav`)
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "download_url": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Download Url"
        },
        "recording_sid": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Recording Sid"
        },
        "format": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Format"
        }
      },
      "required": [
        "success"
      ],
      "title": "DownloadRecordingMediaOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="phone_number_lookup — Look up information about a phone number including line type intelligence.">
    ### Parameters

    <ResponseField name="phone_number" type="string" required>
      The phone number to look up.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "LookupResult": {
          "additionalProperties": false,
          "properties": {
            "phone_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Phone Number"
            },
            "country_code": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Country Code"
            },
            "calling_country_code": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Calling Country Code"
            },
            "national_format": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "National Format"
            },
            "valid": {
              "anyOf": [
                {
                  "type": "boolean"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Valid"
            },
            "validation_errors": {
              "items": {
                "type": "string"
              },
              "title": "Validation Errors",
              "type": "array"
            },
            "line_type": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Line Type"
            },
            "carrier_name": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Carrier Name"
            }
          },
          "title": "LookupResult",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "lookup": {
          "anyOf": [
            {
              "$ref": "#/$defs/LookupResult"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "PhoneNumberLookupOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="send_sms_verification — Send an SMS verification code to a phone number via Twilio Verify.">
    ### Parameters

    <ResponseField name="service_sid" type="string" required>
      The SID of the Verify service.
    </ResponseField>

    <ResponseField name="to" type="string" required>
      The destination phone number in E.164 format.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "VerificationResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "service_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Service Sid"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "channel": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Channel"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "valid": {
              "anyOf": [
                {
                  "type": "boolean"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Valid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            }
          },
          "title": "VerificationResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "verification": {
          "anyOf": [
            {
              "$ref": "#/$defs/VerificationResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "SendSmsVerificationOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="check_verification_token — Check if a user-provided verification code is correct.">
    ### Parameters

    <ResponseField name="service_sid" type="string" required>
      The SID of the Verify service.
    </ResponseField>

    <ResponseField name="to" type="string" required>
      The phone number that received the verification code in E.164 format.
    </ResponseField>

    <ResponseField name="code" type="string" required>
      The verification code to check.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "VerificationResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "service_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Service Sid"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "to": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "To"
            },
            "channel": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Channel"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "valid": {
              "anyOf": [
                {
                  "type": "boolean"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Valid"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            }
          },
          "title": "VerificationResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "verification": {
          "anyOf": [
            {
              "$ref": "#/$defs/VerificationResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "CheckVerificationTokenOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="create_verification_service — Create a new Twilio Verify service for sending SMS verifications.">
    ### Parameters

    <ResponseField name="friendly_name" type="string" required>
      A human-readable name for the new verification service.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "VerificationServiceResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "friendly_name": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Friendly Name"
            },
            "code_length": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Code Length"
            },
            "lookup_enabled": {
              "anyOf": [
                {
                  "type": "boolean"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Lookup Enabled"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            }
          },
          "title": "VerificationServiceResource",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "service": {
          "anyOf": [
            {
              "$ref": "#/$defs/VerificationServiceResource"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        }
      },
      "required": [
        "success"
      ],
      "title": "CreateVerificationServiceOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="list_transcripts — List voice intelligence transcripts, optionally including transcript text.">
    ### Parameters

    <ResponseField name="include_transcript_text" type="boolean">
      Set to true to include transcript sentences in the response.
    </ResponseField>

    <ResponseField name="limit" type="integer">
      Maximum number of transcripts to return. (Default: `50`)
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "TranscriptResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "service_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Service Sid"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "duration": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Duration"
            },
            "channel": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Channel"
            },
            "sentences": {
              "items": {
                "$ref": "#/$defs/TranscriptSentence"
              },
              "title": "Sentences",
              "type": "array"
            },
            "transcript_text": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Transcript Text"
            }
          },
          "title": "TranscriptResource",
          "type": "object"
        },
        "TranscriptSentence": {
          "additionalProperties": false,
          "properties": {
            "media_channel": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Media Channel"
            },
            "sentence_index": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sentence Index"
            },
            "start_time": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Start Time"
            },
            "end_time": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "End Time"
            },
            "transcript": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Transcript"
            },
            "confidence": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Confidence"
            }
          },
          "title": "TranscriptSentence",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "transcripts": {
          "items": {
            "$ref": "#/$defs/TranscriptResource"
          },
          "title": "Transcripts",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "ListTranscriptsOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="get_transcripts — Retrieve full transcripts with sentences for the specified transcript SIDs.">
    ### Parameters

    <ResponseField name="transcript_sids" type="array" required>
      Array of transcript SID strings to retrieve.
    </ResponseField>

    ### Response

    ```json theme={null}
    {
      "$defs": {
        "TranscriptResource": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "account_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Account Sid"
            },
            "service_sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Service Sid"
            },
            "status": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Status"
            },
            "date_created": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Created"
            },
            "date_updated": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Date Updated"
            },
            "duration": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Duration"
            },
            "channel": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Channel"
            },
            "sentences": {
              "items": {
                "$ref": "#/$defs/TranscriptSentence"
              },
              "title": "Sentences",
              "type": "array"
            },
            "transcript_text": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Transcript Text"
            }
          },
          "title": "TranscriptResource",
          "type": "object"
        },
        "TranscriptSentence": {
          "additionalProperties": false,
          "properties": {
            "media_channel": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Media Channel"
            },
            "sentence_index": {
              "anyOf": [
                {
                  "type": "integer"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sentence Index"
            },
            "start_time": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Start Time"
            },
            "end_time": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "End Time"
            },
            "transcript": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Transcript"
            },
            "confidence": {
              "anyOf": [
                {
                  "type": "number"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Confidence"
            }
          },
          "title": "TranscriptSentence",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "transcripts": {
          "items": {
            "$ref": "#/$defs/TranscriptResource"
          },
          "title": "Transcripts",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "GetTranscriptsOutput",
      "type": "object"
    }
    ```
  </Accordion>

  <Accordion title="list_phone_numbers — List incoming phone numbers on your Twilio account.">
    ### Response

    ```json theme={null}
    {
      "$defs": {
        "PhoneNumberInfo": {
          "additionalProperties": false,
          "properties": {
            "sid": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Sid"
            },
            "phone_number": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Phone Number"
            },
            "friendly_name": {
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "default": null,
              "title": "Friendly Name"
            }
          },
          "title": "PhoneNumberInfo",
          "type": "object"
        }
      },
      "additionalProperties": false,
      "properties": {
        "success": {
          "title": "Success",
          "type": "boolean"
        },
        "error": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Error"
        },
        "phone_numbers": {
          "items": {
            "$ref": "#/$defs/PhoneNumberInfo"
          },
          "title": "Phone Numbers",
          "type": "array"
        }
      },
      "required": [
        "success"
      ],
      "title": "ListPhoneNumbersOutput",
      "type": "object"
    }
    ```
  </Accordion>
</AccordionGroup>

## Limits & Quotas

* **SMS**: Throughput varies by number type. Long codes: 1 SMS/sec (US/Canada). Toll-free: 3 SMS/sec. Short codes: 30+ SMS/sec.
* **Voice**: Concurrent call limits depend on your account type and phone numbers provisioned.
* **Lookup**: Charged per lookup. Standard rate lookup is included in the monthly fee; carrier/line-type lookups are billed per query.
* **Verify**: Each verification attempt is billed. See [Twilio Verify pricing](https://www.twilio.com/verify/pricing).
* **Voice Intelligence**: Charged per minute of audio transcribed.
* **Error model**: Non-2xx responses and timeouts are caught and returned as `success=False` + `error` rather than raising.

## Related integrations

<CardGroup cols={3}>
  <Card title="AgentMail" href="/integrations/tools/agentmail" />

  <Card title="ElevenLabs" href="/integrations/tools/elevenlabs" />

  <Card title="Gmail" href="/integrations/tools/gmail" />
</CardGroup>

## Links

* [Twilio](https://www.twilio.com)