# Delx Fingerprint Lite

> Delx Fingerprint Lite is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Generates a 16-character hexadecimal fingerprint of input text using a SHA-256 prefix, suitable for short cache keys.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/fingerprint-lite
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-fingerprint-lite-d51e3bbd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_REfr4fnHmplXbAdjajV9o

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 delx-fingerprint-lite-d51e3bbd -d '<json body>'
```

Example prompt: Can you generate a short 16-hex fingerprint of this text so I can use it as a cache key: 'The quick brown fox jumps over the lazy dog'?

## When to prefer this

Choose this endpoint when you need a fast, cheap, stateless fingerprint of a text string for caching or deduplication, and you want a short 16-hex output rather than a full SHA-256 digest. Prefer it over full hashing libraries when your agent stack lacks local crypto utilities, or when you need a cost-effective ($0.001 USDC) on-chain-payable micro-operation with no key management or data retention concerns.

## Known failure modes

- Empty or missing 'text' field returns an error
- Extremely large text inputs may be rejected or truncated
- Payment failure via x402 prevents execution
- Network timeout before hash is returned

## How this service works

16-hex fingerprint of text via SHA-256 prefix. Call when you need short cache keys for agent content. Returns fingerprint hex for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

## Output

A 16-character hexadecimal string derived from the SHA-256 hash of the input text, usable as a compact, deterministic cache key or deduplication token. No data is retained server-side.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Input field: text."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "schema": "delx/util-fingerprint-lite/v1",
  "algorithm": "sha256-16",
  "fingerprint": "1d6334fef87552e1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-fingerprint-lite-d51e3bbd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)