Tool detail

Hash + HMAC

Computes MD5, SHA-1, SHA-256, SHA-384 or SHA-512 digests or HMACs of given text, output as hex, base64, or base64url.

Categories: Utilities

Use when

compute a SHA-256 checksum of some text
generate an HMAC signature with a shared key
get a base64url-encoded hash for content addressing

Not for

not for hashing files or binary uploads, text input only
not a password-hashing function like bcrypt or argon2

Inputs

POST JSON body: { text: string } (required); algorithm (default sha256), encoding (default hex), key for HMAC (all optional)

Admitted input schema

{
  "type": "object",
  "properties": {
    "algorithm": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "md5",
        "sha1",
        "sha256",
        "sha384",
        "sha512"
      ],
      "default": "sha256"
    },
    "encoding": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "hex",
        "base64",
        "base64url"
      ],
      "default": "hex"
    },
    "key": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "If present, compute HMAC-<algorithm> with this key instead of a plain hash."
    },
    "text": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "The data to hash."
    }
  },
  "required": [
    "text"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://keyronne.com/api/hash

Payment

Protocol: x402
Listed price: 0.001 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://keyronne.com/api/hash
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z