# ForgeMesh Audio Converter

> ForgeMesh Audio Converter is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Converts any public audio or video URL (MP4, MOV, WAV, OGG, M4A up to 25MB) to MP3, returning the result as a base64-encoded MP3 string.

## Facts

- Endpoint: POST https://x402.forgemesh.io/convert-audio
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/forgemesh-audio-converter-aa0ff65e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jlug3N3e1RWzFVpRyqEfK

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-converter-aa0ff65e -d '<json body>'
```

Example prompt: Convert this public MP4 video to MP3 for me — here's the URL: https://example.com/podcast-episode.mp4 — I need the audio as a base64-encoded MP3 so I can pipe it into my transcription workflow.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use audio/video-to-MP3 conversion with no setup, especially in media pipelines where privacy matters (files deleted immediately). Ideal as a format bridge before audio transcription or when extracting audio tracks from video files without running local FFmpeg infrastructure.

## Known failure modes

- URL is not publicly accessible — returns error indicating unreachable media
- File exceeds 25MB limit — returns error about file size
- Unsupported format beyond MP4/MOV/WAV/OGG/M4A — conversion fails with format error
- Payment of $0.005 USDC not provided or rejected — 402 Payment Required
- Network timeout fetching the remote media URL

## How this service works

Audio conversion API: convert any public audio/video URL (mp4, mov, wav, ogg, m4a — up to 25MB) to MP3 on our own hardware. Returns base64 MP3. Use as an mp4-to-mp3 extractor, audio normalizer before transcription, or format bridge in media pipelines. Files deleted immediately after processing.

## Output

A base64-encoded MP3 string representing the audio extracted or converted from the provided media URL. Files are deleted from ForgeMesh servers immediately after processing, so no persistent copy is retained.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "file_base64": "SUQzBAAAAA...",
  "content_type": "audio/mpeg"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/forgemesh-audio-converter-aa0ff65e/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)