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AgentRXI Speech-to-Text (Whisper Large v3 Turbo)
x402
AgentRXI Speech-to-Text (Whisper Large v3 Turbo) is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.011/call, status unknown (last checked 2026-10-15).
Transcribes audio files or public audio URLs to text using OpenAI-compatible Whisper large v3 turbo, returning results in json, text, srt, vtt, or verbose_json format.
Price / call$0.011
Success—
StatusUnknown
How this service works
OpenAI-compatible speech to text (Whisper large v3 turbo): multipart file upload exactly like OpenAI /v1/audio/transcriptions, with response_format json, text, srt, vtt or verbose_json. Also accepts a public audio url. Up to 20 MB, flat price, no API key. Also callable as GET with the same fields as query parameters.
Output
Returns the transcription of the audio in the requested format: plain text, JSON object with a 'text' field, SRT subtitles with timestamps, VTT captions, or verbose JSON including word-level timestamps and segment details depending on the response_format chosen.
Example use cases
Podcast episode transcription
“Can you transcribe this podcast episode at https://example.com/episode42.mp3 and give me the full text transcript?”
Auto-generate video subtitles
“I need an SRT subtitle file for this video audio track at https://cdn.example.com/video_audio.wav — can you transcribe it in SRT format?”
Multilingual meeting notes
“Transcribe this recorded meeting at https://storage.example.com/meeting_french.mp3, the spoken language is French, and return the result as verbose JSON with timestamps.”
Technical details
Endpoint
GEThttps://agentrxi.com/v1/audio/transcriptions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a no-API-key, pay-per-call Whisper large v3 turbo transcription service that is OpenAI API-compatible, supports multiple output formats (SRT, VTT, JSON, text), and accepts either a public URL or multipart file upload at a flat price of $0.011 USDC per call. Ideal for agents that need transcription without managing API credentials.
Side effects
- Audio file exceeds 20 MB limit — request rejected
- Invalid or inaccessible public URL — download failure
- Unsupported audio format — transcription error
- Unrecognized language code — may fall back to auto-detection or fail
- Payment not included or insufficient — x402 payment required error
- Network timeout for large audio files
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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