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

# Get call recording

> Returns the audio recording for a conversation. Only available when call recording is enabled on the agent.



## OpenAPI

````yaml /openapi.json get /public/v1/conversations/{conversationId}/audio
openapi: 3.0.3
info:
  title: Callin Public API
  version: 1.0.0
  description: >-
    The Callin public API lets you programmatically build and manage AI voice
    agents, control their knowledge bases, and retrieve call logs and
    transcripts. All endpoints are versioned under /public/v1.
servers:
  - url: https://api.callin.io/api
    description: API Endpoint
security: []
tags:
  - name: Health
    description: Service availability check. No authentication required.
  - name: Identity
    description: Verify which account is associated with the current API key.
  - name: Agents
    description: Create, retrieve, and update AI voice agents.
  - name: Conversations
    description: List and inspect call logs, transcripts, and conversation details.
  - name: Knowledge Base
    description: Manage documents and groups that agents use during calls.
paths:
  /public/v1/conversations/{conversationId}/audio:
    get:
      tags:
        - Conversations
      summary: Get call recording
      description: >-
        Returns the audio recording for a conversation. Only available when call
        recording is enabled on the agent.
      parameters:
        - name: conversationId
          in: path
          required: true
          schema:
            type: string
          description: The unique identifier of the conversation.
      responses:
        '200':
          description: Audio file stream for the call recording.
          content:
            audio/mpeg:
              schema:
                type: string
                format: binary
            audio/x-wav:
              schema:
                type: string
                format: binary
        '404':
          description: No recording found for the given conversationId.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Audio fetch failed
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                    example: Failed to fetch recording
      security:
        - ApiKeyHeader: []
        - BearerAuth: []
        - ApiKeyQuery: []
components:
  schemas:
    ErrorResponse:
      type: object
      description: >-
        Returned for most client and validation errors. Read `error.message` and
        optional `error.fields` for details.
      properties:
        success:
          type: boolean
          example: false
          description: Always `false` for this shape.
        error:
          type: object
          description: Structured error payload from the API.
          properties:
            code:
              type: string
              description: Stable machine-oriented error code when provided.
            message:
              type: string
              description: Human-readable explanation suitable to show or log.
            status:
              type: integer
              description: HTTP status code echoed for convenience.
            fields:
              type: array
              description: >-
                Optional per-field validation issues (shape is
                endpoint-specific).
              items:
                type: object
  securitySchemes:
    ApiKeyHeader:
      type: apiKey
      in: header
      name: x-api-key
      description: Send your Callin API key in the `x-api-key` header.
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: 'Same API key as a Bearer token: `Authorization: Bearer <your-api-key>`.'

````