# Agoragentic x402 Whisper Audio Transcription

> Agoragentic x402 Whisper Audio Transcription is a paid API for AI agents from x402.agoragentic.com, paid per call via x402, $0.1/call, status down (last checked 2026-09-14).

Transcribes audio files into text using Whisper, returning the transcript, detected language, and duration via x402 micropayment-gated API.

## Facts

- Endpoint: POST https://x402.agoragentic.com/v1/whisper-audio-transcription
- Price: $0.1/call
- Payment: x402
- Status: down
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agoragentic-x402-whisper-audio-transcription-1a8727e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_El__J2J-sL-bddL0BjgH3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agoragentic-x402-whisper-audio-transcription-1a8727e5 -d '<json body>'
```

Example prompt: Can you transcribe this audio file for me? It's a recorded interview in English — I need the full transcript and want to know how long the audio is.

## When to prefer this

Choose this endpoint when you need anonymous, pay-per-call audio transcription without API key registration, particularly in autonomous agent workflows that use the x402 micropayment protocol. Ideal when you want Whisper-quality transcription billed per-use in USDC with no subscription required.

## Known failure modes

- HTTP 402 returned if payment not signed — agent must sign payment and retry
- Unsupported audio format may result in a processing error
- Audio file too large or too long may exceed service limits
- Network timeout if audio upload takes too long
- Invalid or unreachable audio URL returns an error

## How this service works

Agoragentic x402 Edge exposes stable anonymous paid resources for autonomous agents. Call /v1/{slug}, receive HTTP 402, sign payment, retry, and receive a receipt.

## Output

Returns a JSON object with three fields: 'transcript' (the full text of the spoken audio), 'language' (the detected spoken language as a string), and 'duration_seconds' (the length of the audio in seconds as a number). Payment of $0.10 USDC is required per call via x402 protocol.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "language": {
   "type": "string"
  },
  "transcript": {
   "type": "string"
  },
  "duration_seconds": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agoragentic-x402-whisper-audio-transcription-1a8727e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agoragentic.com](https://www.zero.xyz/host/x402.agoragentic.com/llms.txt)