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POST
/
producer
/
v1
/
extend
cURL
curl --request POST \
  --url https://api.ttapi.io/producer/v1/extend \
  --header 'Content-Type: application/json' \
  --header 'TT-API-KEY: <api-key>' \
  --data '
{
  "music_id": "<string>",
  "starts": "30.00",
  "sound_prompt": "<string>",
  "lyrics_text": "<string>",
  "instrumental": "false",
  "mv": "FUZZ-2.0",
  "title": "<string>",
  "cover_art_url": "<string>",
  "seed": "<string>",
  "lyrics_strength": "0.5",
  "sound_strength": "0.5",
  "weirdness": "0.5",
  "is_storage": "false",
  "hook_url": "<string>"
}
'
{
  "status": "SUCCESS",
  "message": "success",
  "data": {
    "job_id": "job_id"
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.ttapi.io/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
TT-API-KEY
string
header
required

You can obtain your API key from the TTAPI Dashboard.

Body

application/json
​
music_id
string
required

Parent task's musicId

​
starts
number
default:30.00
required

Indicates extending from the nth second of the original audio, unit: seconds

​
sound_prompt
string
required

Audio prompt, sound_prompt and lyrics_text cannot both be empty

​
lyrics_text
string
required

Lyrics text, sound_prompt and lyrics_text cannot both be empty

​
instrumental
boolean
default:false

Whether to generate pure music

​
mv
enum<string>
default:FUZZ-2.0

Model to use, supported options listed above

Available options:
FUZZ-2.0 Pro,
FUZZ-2.0,
FUZZ-2.0 Raw,
FUZZ-1.1 Pro,
FUZZ-1.0 Pro,
FUZZ-1.0,
FUZZ-1.1,
FUZZ-0.8,
Lyria 3 preview
​
title
string

Title

​
cover_art_url
string

Cover URL

​
seed
string

Random seed

​
lyrics_strength
number
default:0.5

Lyrics strength, optional 0-1

​
sound_strength
number
default:0.5

Audio prompt strength, optional 0.2-1

​
weirdness
number
default:0.5

Style weirdness, optional 0-1

​
is_storage
boolean
default:false

Whether to save

​
hook_url
string

Callback notification URL. The data returned is consistent with the task result query response

Response

Request successful

​
status
string
required
Example:

"SUCCESS"

​
message
string
required
Example:

"success"

​
data
object
required
Example:
{ "job_id": "job_id" }
Last modified on April 14, 2026