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MolCloud Audio Transcription
x402
MolCloud Audio Transcription is a paid API for AI agents from api.molcloud.net, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-17).
Transcribes speech from an audio file (URL or base64) to text, returning the transcript and optional segments via pay-per-request USDC micropayment.
Price / call$0.006
Success—
StatusUnknown
How this service works
40 pay-per-request AI, search, headless browser, crypto alpha & memory APIs for autonomous agents settling in USDC on Base via x402 v2.
Output
Returns a JSON object with a 'data' field containing 'text' (the full transcribed string) and 'segments' (an array of timed or segmented transcript chunks), plus a 'status' field ('success') and the endpoint path confirming which API was called.
Example use cases
Podcast episode transcription
“I have a podcast episode hosted at https://cdn.mypodcast.com/ep42.mp3 — can you transcribe it to text so I can publish show notes? It's in English.”
Customer call quality review
“Transcribe this customer support call recording from https://storage.mycrm.com/calls/call-8821.wav so I can review what was said. The language is English.”
Multilingual voice memo to text
“I recorded a voice memo in Spanish and uploaded it here: https://files.myapp.com/memo_es.m4a — please transcribe it and use 'es' as the language hint.”
Technical details
Endpoint
POSThttps://api.molcloud.net/api/ai/transcribe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quick, pay-per-request speech-to-text without a subscription, especially in autonomous agent workflows that settle micropayments in USDC on Base via x402. It is well-suited for agents that process arbitrary audio URLs on demand and need a simple transcript+segments output without managing a dedicated ASR service account.
Side effects
- Invalid or inaccessible audio URL returns an error status
- Unsupported audio format (e.g. FLAC) may fail or return empty transcript
- Very long audio files may time out or exceed processing limits
- Incorrect language hint may degrade transcription accuracy
- Malformed base64 payload causes decoding error
- Network fetch of audio URL fails if the file is behind authentication or a CDN block
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| audioUrl | string | Public URL of audio file (MP3, WAV, OGG, M4A) |
| language | string | Optional ISO language hint (e.g. en) |
| audioBase64 | string | Optional base64-encoded audio payload |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"text": "Transcribed speech text...",
"segments": []
},
"status": "success",
"endpoint": "/api/ai/transcribe"
}
}Tags
x402
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