Concat

Endpoint

POST /api/v1/music/concat

Synchronous (blocking). Submits a concat job and waits for completion (up to 5 minutes). Returns the finished track. Takes an existing clip and reconstructs the full-length version of the song it originated from.

Request body

Field	Type	Required	Description
`clip_id`	string	Yes	Clip ID of the segment to concat.

Response

{
  "code": 0,
  "message": "ok",
  "request_id": "req-1710000000000",
  "data": {
    "id": "abc123def456",
    "status": 20,
    "audioUrl": "https://cdn.example.com/audio/abc123def456.mp3",
    "cld2AudioUrl": "https://cdn.example.com/audio/abc123def456_full.mp3",
    "duration": 180
  }
}

Field	Type	Description
`id`	string	Clip ID of the resulting full-length track.
`cld2AudioUrl`	string	URL of the full-length audio.
`duration`	integer	Audio duration in seconds.

This endpoint blocks the HTTP connection for up to 5 minutes while waiting for the concat job to finish. Ensure your client and any proxies have a sufficiently long timeout (≥ 300 seconds).

Example

curl -X POST https://api.example.com/api/v1/music/concat \
  -H "Authorization: Bearer sk-mm-your-key" \
  -H "Content-Type: application/json" \
  --max-time 600 \
  -d '{
    "clip_id": "abc123def456"
  }'

Upload Audio Add Instrumental

Getting Started

Overview

Music Generation

Lyrics

Audio Processing

AI Singer (Persona)

Tasks & Results

Endpoint

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Response

Example

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Endpoint

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Example