Generate a music file

POST

/music

curl --request POST \
  --url https://api.braiv.co/v1/music \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: import-launch-demo-20260901' \
  --data '{ "prompt": "Warm piano and soft strings, hopeful and unhurried", "duration": 45 }'

• Braiv Public API

Queues a standalone music file from a text prompt and a duration in seconds. Does not mix the audio into a video. Costs 20 credits, refunded if generation fails. Required scope: music:write.

Authorizations

• bearerAuth
• apiKeyHeader

Parameters

Header Parameters

Idempotency-Key

string

>= 1 characters

Caller-generated key for safe POST retries. The API retains the first JSON response for 24 hours. Reusing a key with another path or body returns 409 IDEMPOTENCY_REPLAY.

Example

import-launch-demo-20260901

Request Body ^required

Media type application/json

object

prompt

required

Music description sent to generation unchanged.

string

>= 1 characters <= 2000 characters

duration

required

Length of the music file in seconds.

number

>= 1 <= 380

Example

{
  "prompt": "Warm piano and soft strings, hopeful and unhurried",
  "duration": 45
}

Responses

202

Music generation queued.

Media type application/json

object

musicId

required

Music generation id.

string

jobId

required

Pollable job id, music_{musicId}.

string

creditsSpent

required

Credits debited for this generation. Flat 20.

integer

balance

required

Billing-account balance after the debit.

number

Example

{
  "musicId": "mus_01",
  "jobId": "music_mus_01",
  "creditsSpent": 20,
  "balance": 80
}

400

Request fields are missing, malformed, out of bounds, or mutually inconsistent.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Example

{
  "error": {
    "code": "INVALID_ARGUMENT",
    "message": "The request contains invalid or missing fields.",
    "details": {}
  }
}

401

A supported authentication header is missing or contains an invalid Public API key.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Examples

Authentication header missing

{
  "error": {
    "code": "UNAUTHENTICATED",
    "message": "Missing API key.",
    "details": {}
  }
}

API key invalid

{
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key",
    "details": {}
  }
}

403

Authentication succeeded, but the required scope, workspace role, or resource permission is missing.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Examples

Example scope

{
  "error": {
    "code": "INSUFFICIENT_SCOPE",
    "message": "The API key lacks the required scope.",
    "details": {}
  }
}

422

Request fields are missing, malformed, out of bounds, or mutually inconsistent.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Example

{
  "error": {
    "code": "INVALID_ARGUMENT",
    "message": "The request contains invalid or missing fields.",
    "details": {}
  }
}

429

The API key exceeded its allowed concurrency or request rate. Retry after in-flight work completes or the limit resets.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Example

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "API key concurrency limit reached",
    "details": {}
  }
}

500

An unexpected server error occurred.

Media type application/json

object

error

required

Structured public API error envelope.

object

code

required

Stable machine-readable error code.

string

Allowed values: UNAUTHENTICATED INVALID_API_KEY INSUFFICIENT_SCOPE PERMISSION_DENIED ROLE_CANNOT_PRODUCE NOT_FOUND INVALID_ARGUMENT UNSUPPORTED_SOURCE DURATION_UNKNOWN INSUFFICIENT_CREDITS CONFLICT ALREADY_EXISTS IDEMPOTENCY_REPLAY RATE_LIMITED PREVIEW_NOT_DOWNLOADABLE DOWNLOAD_TIER_NONE FAILED_PRECONDITION GONE METHOD_NOT_ALLOWED INTERNAL

message

required

Human-readable error summary.

string

details

required

Machine-readable operation-specific context; empty when unavailable.

object

key

additional properties

any

Example

{
  "error": {
    "code": "INTERNAL",
    "message": "An unexpected error occurred.",
    "details": {}
  }
}