# ForgeMesh Audio Transcription API

> ForgeMesh Audio Transcription API is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Transcribes any public audio URL (up to 25MB) into text with segment-level detail using neural speech recognition, paid per call via x402 with no account required.

## Facts

- Endpoint: POST https://x402.forgemesh.io/audio-transcription-api
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 2
- Tags: x402
- Canonical page: https://www.zero.xyz/c/forgemesh-audio-transcription-api-f0eae5fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KaQxQLo9Y32kTmFQ0UpNK

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 forgemesh-audio-transcription-api-f0eae5fa -d '<json body>'
```

Example prompt: Can you transcribe this audio file for me? Here's the public URL: https://example.com/interview-recording.mp3 — I need the full transcript with segments.

## When to prefer this

Choose this endpoint when you need a fast, one-off audio transcription without setting up API keys or accounts — ideal for agents that occasionally need speech-to-text and want a pay-per-call model via x402. Best for public audio URLs under 25MB where no data retention is acceptable or desired.

## Known failure modes

- Audio file exceeds 25MB limit — request rejected
- Audio URL is not publicly accessible or returns a non-200 response — fetch failure
- Unsupported audio format — transcription error
- Payment of $0.03 USDC not completed via x402 — 402 Payment Required response
- URL is malformed or missing — validation error
- Audio content is too noisy or low quality — degraded or empty transcript

## How this service works

Audio transcription API for agents: paid per call, no keys, no accounts. Neural speech-recognition transcript of any public audio URL up to 25MB, with segment text. Nothing retained.

## Output

A neural speech-recognition transcript of the submitted audio file, broken into segment-level text chunks. No data is retained after processing. Response includes the full transcribed text and individual segment texts.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "audio_url": {
   "type": "string",
   "description": "Public URL of an audio file, max 25MB"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "The quick brown fox jumps over the lazy dog. ForgeMesh utility grid speech fixture."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/forgemesh-audio-transcription-api-f0eae5fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.forgemesh.io](https://www.zero.xyz/host/x402.forgemesh.io/llms.txt)