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CivicMerge x402 Speech-to-Text Transcription
x402
CivicMerge x402 Speech-to-Text Transcription is a paid API for AI agents from x402-ai-api.civicmerge.workers.dev, paid per call via x402, $0.020000/call, status unknown (last checked 2026-09-13).
Transcribes an uploaded audio file to text using AI-powered speech recognition, billed per call via x402 micropayment protocol
Price / call$0.020000
Success—
StatusUnknown
How this service works
Speech-to-text
Output
Returns a text transcript of the spoken content in the uploaded audio file, produced by an AI speech-to-text model. Billed at $0.02 USDC per call via x402 protocol.
Example use cases
Convert voice memos to searchable text
“I've got a bunch of voice notes from my brainstorming session yesterday. Can you transcribe each one so I can search through them and find the ideas I mentioned about the product roadmap?”
Extract dialogue from customer call recordings
“We just finished a customer support call and I recorded it. Can you transcribe the entire conversation so I can pull out the key issues they mentioned and create a support ticket?”
Turn podcast episodes into written summaries
“I listen to a lot of podcasts but rarely have time to take notes. Can you transcribe this episode I downloaded so I can quickly skim it and highlight the important takeaways?”
Technical details
Endpoint
POSThttps://x402-ai-api.civicmerge.workers.dev/v1/audio/transcribeWhen to prefer
Choose this endpoint when you need per-call micropayment-based speech-to-text transcription without a subscription, especially in agentic workflows using the x402 payment protocol. Ideal for low-volume or pay-as-you-go transcription needs on Cloudflare's edge infrastructure.
Side effects
- Unsupported audio format results in an error response
- Audio file too large or too long may cause timeout or rejection
- Missing or malformed multipart form-data causes 400 bad request
- Payment not authorized or x402 handshake fails results in 402 Payment Required
- Inaudible or silent audio may return empty or low-confidence transcript
- Network or Cloudflare Worker timeout on large files
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| file | string | Audio file (multipart form-data) |
Tags
x402
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