> ## Documentation Index > Fetch the complete documentation index at: https://docs.agentbody.io/llms.txt > Use this file to discover all available pages before exploring further. # Download Instagram post audio > Use this operation to save the audio track of one public Instagram post (Reel, video, or photo with a sound) as a retained audio file (AAC in M4A) with a permanent download URL and normalized track metadata. Pass a full instagram.com link or a bare shortcode. ## OpenAPI ````yaml /api-reference/openapi.json post /v1/instagram/audio/download openapi: 3.1.0 info: description: >- Direct authenticated APIs for public social data, people data, transcripts, documents, text, and SEO. Send an API key as a Bearer token. Responses never include provider credentials or raw provider payloads. license: name: Proprietary url: https://agentbody.io title: AgentBody API version: 2026-09-24.1 servers: - url: https://api.agentbody.io security: - bearerAuth: [] paths: /v1/instagram/audio/download: post: tags: - instagram summary: Download Instagram post audio description: >- Use this operation to save the audio track of one public Instagram post (Reel, video, or photo with a sound) as a retained audio file (AAC in M4A) with a permanent download URL and normalized track metadata. Pass a full instagram.com link or a bare shortcode. operationId: post_v1_instagram_audio_download parameters: - $ref: '#/components/parameters/IdempotencyKey' requestBody: content: application/json: schema: $ref: '#/components/schemas/InstagramAudioDownloadRequest' required: true responses: '200': $ref: '#/components/responses/InstagramAudioDownloadSuccess' '400': content: application/json: example: error: code: INVALID_ARGUMENT message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: INVALID_ARGUMENT type: string message: type: string required: - code - message type: object required: - error type: object description: Correct the input; do not retry unchanged. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string '401': content: application/json: example: error: code: UNAUTHENTICATED message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: UNAUTHENTICATED type: string message: type: string required: - code - message type: object required: - error type: object description: Configure a valid API key; do not retry unchanged. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string '409': content: application/json: example: error: code: CONFLICT message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: CONFLICT type: string message: type: string required: - code - message type: object required: - error type: object description: Follow the documented Idempotency-Key behavior before retrying. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string '502': content: application/json: example: error: code: UPSTREAM_INVALID_RESPONSE message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: UPSTREAM_INVALID_RESPONSE type: string message: type: string required: - code - message type: object required: - error type: object description: Retry with backoff, then report temporary unavailability. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string '503': content: application/json: example: error: code: UPSTREAM_UNAVAILABLE message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: UPSTREAM_UNAVAILABLE type: string message: type: string required: - code - message type: object required: - error type: object description: Retry with backoff, then report temporary unavailability. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string '504': content: application/json: example: error: code: UPSTREAM_TIMEOUT message: example error schema: additionalProperties: false properties: error: additionalProperties: false properties: code: const: UPSTREAM_TIMEOUT type: string message: type: string required: - code - message type: object required: - error type: object description: Retry with backoff, then report temporary unavailability. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string components: parameters: IdempotencyKey: description: Optional key for safely retrying a billable write request. example: request-20260819-001 in: header name: Idempotency-Key required: false schema: maxLength: 255 minLength: 1 type: string schemas: InstagramAudioDownloadRequest: additionalProperties: false properties: url: description: >- Public Instagram post URL (instagram.com/reel/{shortcode}, /p/{shortcode}, /tv/{shortcode}, or share link) whose audio track is downloaded. format: uri type: string required: - url type: object InstagramAudioDownloadResult: additionalProperties: false properties: artist: type: string audio_type: description: >- Audio classification reported upstream (licensed, original, or none). type: string audio_url: description: Retained permanent audio file URL (AAC in M4A container). format: uri type: string cover_url: format: uri type: string duration_ms: format: int64 type: integer file_size_bytes: format: int64 type: integer is_trending: type: boolean post_url: format: uri type: string shortcode: type: string title: type: string required: - shortcode - post_url - audio_url type: object responses: InstagramAudioDownloadSuccess: content: application/json: example: artist: Example Artist audio_type: licensed audio_url: >- https://api.apify.com/v2/key-value-stores/example/records/audio_DcSAqhCTTrX.m4a cover_url: https://example.com/cover.jpg duration_ms: 175453 file_size_bytes: 1833377 is_trending: true post_url: https://www.instagram.com/reel/DcSAqhCTTrX/ shortcode: DcSAqhCTTrX title: Example Track schema: $ref: '#/components/schemas/InstagramAudioDownloadResult' description: Retained Instagram audio file URL and normalized public track metadata. headers: X-Request-Id: description: Gateway request identifier for support and audit. schema: format: uuid type: string securitySchemes: bearerAuth: scheme: bearer type: http ````