# dt0ur.online Audio Fingerprinting

> dt0ur.online Audio Fingerprinting is a paid API for AI agents from dt0ur.online, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-03).

Generates standardized Chromaprint acoustic fingerprints from audio files for copyright matching and track identification.

## Facts

- Endpoint: POST https://dt0ur.online/api/audio/fingerprint?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dt0ur-online-audio-fingerprinting-4da9fea5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3E2H0R_bJtwceBXbvXlSu

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 dt0ur-online-audio-fingerprinting-4da9fea5 -d '<json body>'
```

Example prompt: Can you generate a Chromaprint acoustic fingerprint for the audio file at https://example.com/songs/track.mp3 so I can check it for copyright matches?

## When to prefer this

Choose this endpoint when you need to generate a standardized Chromaprint acoustic fingerprint from an audio file URL for purposes like copyright detection, track identification, or deduplication. It is ideal for pipelines that compare audio against fingerprint databases such as AcoustID. Prefer this over full audio analysis endpoints when you specifically need the compact fingerprint representation rather than metadata or waveform data.

## Known failure modes

- Audio URL is not publicly accessible or returns a 403/404 — fingerprinting fails with an access error
- Unsupported audio format or corrupted file — returns a format or decoding error
- Audio file is too short or silent — may produce an invalid or low-quality fingerprint
- Network timeout fetching the audio URL — returns a timeout error
- File size exceeds service limits — rejected with a payload too large error

## How this service works

Generates standardized Chromaprint acoustic fingerprints from audio files for copyright matching and track identification.

## Output

Returns a standardized Chromaprint acoustic fingerprint (a compact hash or encoded string) representing the unique acoustic signature of the submitted audio file, suitable for comparison against fingerprint databases for track identification or copyright matching.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "file_url": {
   "type": "string",
   "format": "uri",
   "description": "Public URL to audio stream or file"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dt0ur-online-audio-fingerprinting-4da9fea5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dt0ur.online](https://www.zero.xyz/host/dt0ur.online/llms.txt)