# KiteEndpoints.ai - YouTube MP3 Audio Converter

> KiteEndpoints.ai - YouTube MP3 Audio Converter is a paid API for AI agents from kite-endpoints.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).

Converts a YouTube video URL into a downloadable MP3 audio file

## Facts

- Endpoint: POST https://kite-endpoints.vercel.app/api/youtube-mp3-audio
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-youtube-mp3-audio-converter-ac000026
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sWibbL6jBpSpUkXgfKduk

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 kiteendpoints-ai-youtube-mp3-audio-converter-ac000026 -d '<json body>'
```

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

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use YouTube-to-MP3 conversion without setting up your own yt-dlp infrastructure. Ideal for agents that occasionally need audio extraction without committing to a subscription-based service. Useful when the cost per conversion ($0.20 USDC) is acceptable and you need a simple REST interface paid via Base chain crypto.

## Known failure modes

- Invalid or inaccessible YouTube URL — video may be private, deleted, or region-locked
- Video too long causing timeout or size limit exceeded
- YouTube rate limiting or anti-bot measures blocking extraction
- Age-restricted or DRM-protected content cannot be converted
- Malformed input schema returning an error response

## 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 audio data or a download link for the MP3 file extracted from the specified YouTube video, delivered as a JSON response with a result object containing the audio data or URL.

## 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/kiteendpoints-ai-youtube-mp3-audio-converter-ac000026/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-endpoints.vercel.app](https://www.zero.xyz/host/kite-endpoints.vercel.app/llms.txt)