# KiteEndpoints.ai Sonoteller API

> KiteEndpoints.ai Sonoteller API is a paid API for AI agents from kite-hub-v3.vercel.app, paid per call via x402, $0.16/call, status unknown (last checked 2026-10-13).

Analyzes audio or music tracks to extract sonic characteristics, genre, mood, and musical attributes

## Facts

- Endpoint: POST https://kite-hub-v3.vercel.app/api/sonoteller?utm_source=zero.xyz
- Price: $0.16/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-sonoteller-api-f08c7fb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rbxlvSvzbQrw2oK7pbZyL

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-sonoteller-api-f08c7fb0 -d '<json body>'
```

Example prompt: Can you analyze this song and tell me its genre, mood, tempo, and musical key? Here's the track URL: https://example.com/mysong.mp3

## When to prefer this

Choose this endpoint when you need automated music analysis including genre, mood, tempo, and key extraction from an audio track — especially in workflows involving playlist curation, music recommendation, or content tagging where per-track pay-per-use pricing fits better than a subscription.

## Known failure modes

- Invalid or inaccessible audio URL returns an error
- Unsupported audio format may cause processing failure
- Very short or silent audio clips may return empty or low-confidence results
- Network timeout if the audio file is too large or slow to fetch
- Payment failure if USDC balance is insufficient

## 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 a structured object containing extracted musical metadata such as genre classification, mood descriptors, tempo (BPM), musical key, energy level, and other sonic attributes derived from the audio content.

## 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-sonoteller-api-f08c7fb0/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)