upload_extend_audio
Extend any uploaded audio file with AI-generated content. Provide the audio URL to add new segments using styles and prompts.
Instructions
NEW — Extend uploaded audio (NOT a Suno track) with new AI-generated content. For Suno tracks, use extend_music instead.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| wait | No | Set false to submit and return immediately with the task_id (async mode) — then poll with check_task and fetch with download_result. Recommended for long generations to avoid client-side watchdog timeouts. | |
| model | No | V5 | |
| style | No | Style tags for the extension | |
| title | No | ||
| prompt | No | Description of the extension content | |
| filename | No | ||
| uploadUrl | Yes | URL of the audio file to extend | |
| continueAt | No | Timestamp in seconds where to start the extension | |
| download_dir | No | Absolute directory to save the file(s) into (created if missing). Defaults to the server's kie/assets/raw/. Must be absolute — the MCP server's working directory is not the caller's. | |
| instrumental | No | ||
| max_wait_seconds | No | Override the blocking-mode polling budget in seconds (default: audio 300). Ignored when wait=false. |