# KiteEndpoints.ai - YouTube MP3 Audio Converter

> KiteEndpoints.ai - YouTube MP3 Audio Converter is a paid API for AI agents from kite-hub-v3.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-11).

Converts a YouTube video URL into a downloadable MP3 audio file

## Facts

- Endpoint: POST https://kite-hub-v3.vercel.app/api/youtube-mp3-audio?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-youtube-mp3-audio-converter-4ef3d0f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bPwj7Qr9vZiFvNtuOEjwm

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-4ef3d0f6 -d '<json body>'
```

Example prompt: Can you convert this YouTube video to MP3 for me? Here's the link: https://www.youtube.com/watch?v=dQw4w9WgXcQ

## When to prefer this

Use this endpoint when you need a quick, pay-per-request YouTube-to-MP3 conversion without managing your own media extraction infrastructure. It is suitable for one-off conversions billed in USDC on Base chain, avoiding the overhead of self-hosting youtube-dl or similar tools.

## Known failure modes

- Invalid or malformed YouTube URL returns an error
- Private or age-restricted videos may fail to process
- Deleted or unavailable videos return a not-found error
- Very long videos may time out or exceed processing limits
- Geographic restrictions on the video may block extraction

## 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 audio data object containing the MP3 audio extracted from the specified YouTube video, likely as a download URL or binary audio data blob that can be saved or streamed as an MP3 file.

## 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-4ef3d0f6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v3.vercel.app](https://www.zero.xyz/host/kite-hub-v3.vercel.app/llms.txt)