{
  "id": "api:x402-3e56760dace70db6",
  "kind": "api",
  "name": "hash-hmac.underscoredone.com/hash",
  "description": "Give this API any text or binary data and it returns its fingerprint under whichever hash algorithms you choose - SHA-256, SHA-512, MD5, BLAKE2, CRC32 and more. It also signs data with a secret key (HMAC) and safely verifies whether an incoming signature matches, using a timing-safe comparison. Language models cannot hash: they emit a string of the right length and character set that is simply wrong, so every webhook check built on a guessed hash is silently broken.",
  "category": "x402",
  "url": "https://hash-hmac.underscoredone.com/hash",
  "price": null,
  "x402": true,
  "meta": {
    "network": "eip155:8453",
    "scheme": "exact",
    "pay_to": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
    "method": "POST",
    "last_updated": "2026-11-09T12:05:04.532Z"
  },
  "trust": {
    "verified": true,
    "uptime_pct": 100,
    "latency_ms": 209,
    "checks": 1
  }
}