# YouTube to MP3 Converter

> YouTube to MP3 Converter is a paid API for AI agents from kite-hub-v2.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-31).

Converts a YouTube video URL into a downloadable MP3 audio file

## Facts

- Endpoint: POST https://kite-hub-v2.vercel.app/api/youtube-mp3?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/youtube-to-mp3-converter-f63d3853
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UjVumKT58V9bqnLp8_3_b

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 youtube-to-mp3-converter-f63d3853 -d '<json body>'
```

Example prompt: Can you download the audio from this YouTube video as an MP3 for me? Here's the link: https://www.youtube.com/watch?v=dQw4w9WgXcQ

## When to prefer this

Use this endpoint when you need to extract and download the audio track from a YouTube video as an MP3 file, especially when you want a pay-per-request model with no subscription. Best for one-off or infrequent YouTube audio downloads without committing to a recurring plan.

## Known failure modes

- Invalid or unavailable YouTube URL returns an error
- Video is age-restricted or region-blocked and cannot be accessed
- Video is too long and exceeds processing limits
- YouTube removes or changes access, causing conversion failures
- Network timeout during audio extraction
- Payment of 0.15 USDC not processed, returning 402 error

## How this service works

400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.

## Output

Returns an MP3 audio file or a download URL/link pointing to the converted audio extracted from the specified YouTube video.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/youtube-to-mp3-converter-f63d3853/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v2.vercel.app](https://www.zero.xyz/host/kite-hub-v2.vercel.app/llms.txt)