API Documentation
Complete reference for all FFmpeg API endpoints
Base URL & Authentication
https://droidapps.oneRequired Header
X-API-Key: your_api_keyElevenLabs Header
X-ElevenLabs-Key: your_keyAsync Task Flow
Every endpoint except /healthz returns HTTP 202 with a typed task object. Poll links.self, or provide callback_url for webhook events (task.completed / task.failed). The legacy status_url field is still included for backward compatibility.
HTTP/1.1 202 Accepted
Location: https://droidapps.one/task/task_1748200000000_abc123xyz
Retry-After: 5
{
"object": "task",
"id": "task_1748200000000_abc123xyz",
"status": "queued",
"endpoint": "/cut",
"created_at": "2026-05-25T12:00:00+00:00",
"error": null,
"links": {
"self": "https://droidapps.one/task/task_1748200000000_abc123xyz",
"download": null
},
"status_url": "https://droidapps.one/task/task_1748200000000_abc123xyz"
}Webhook Payload
POST to your callback_url when the task completes or fails:
{
"object": "event",
"id": "evt_1748200000000_abc123xyz",
"type": "task.completed",
"created_at": "2026-05-25T12:00:05+00:00",
"data": {
"object": {
"object": "task",
"id": "task_abc123def456",
"status": "completed",
"endpoint": "/cut",
"created_at": "2025-01-01T00:00:00+00:00",
"completed_at": "2025-01-01T00:00:05+00:00",
"error": null,
"links": {
"self": "https://droidapps.one/task/task_abc123def456",
"download": "https://droidapps.one/task/task_abc123def456/download"
},
"output": {
"file_url": "https://droidapps.one/task/task_abc123def456/download",
"file_name": "cut_abc123def456.mp4",
"file_size": 1234567,
"duration": 10.5,
"media_type": "video/mp4"
}
}
}
}Important Notes
- Authentication: All requests require
X-API-Keyheader with your API key - Input Requirements: Send
application/jsonwith public HTTPS URLs (video_url,photo_url,urls). Multipart uploads are not supported. - Results: Outputs are stored automatically. Poll the task, then download from
/task/{id}/download. Do not send adownloadfield in requests. - ElevenLabs Integration: TTS and voice conversion require ElevenLabs API key in X-ElevenLabs-Key header or eleven_api_key parameter
- Background Audio Processing:
- •
keep: Preserves original audio track - •
external: Uses provided Music & Effects file - •
centerremove: FFmpeg-based vocal removal - •
separate: AI-powered vocal separation (requires Demucs)
- •
- Quality Controls: Use match_source=1 to preserve original bitrates, or customize with v_crf, v_preset, and a_bitrate parameters
- Async Tasks: Every endpoint except
/healthzreturns HTTP 202 with a task ID. Pollstatus_urlor usecallback_urlfor webhooks. Download files from/task/{id}/download - Visualization Style Defaults: Each visualization style has optimized default values for viz_h, viz_h_pct, thickness, and viz_gain_db. These are automatically applied if not specified.
- Wave Viewport Feature: Use crop_x, crop_y, crop_w, and crop_h parameters to render wide waveforms (e.g., 2500px) but display only a viewport window (e.g., 1080px). Perfect for slow-moving horizontal waveform animations.
- Wave Mode Compatibility: The 'cline' wave mode only works with direction='both'. When using direction='up' or 'down', the mode automatically switches to 'line' for compatibility.