Tool detail

Hash Digest

Computes SHA-256, SHA-512 and/or Keccak-256 hex digests of an input string.

Categories: Utilities

Use when

get the SHA-256 hash of a string
compute a Keccak-256 digest for an Ethereum-style hash

Not for

not HMAC signing or verification - plain digests only

Inputs

POST JSON body: { input: string, algorithms: array of sha256|sha512|keccak256 } (required)

Admitted input schema

{
  "type": "object",
  "properties": {
    "algorithms": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 0,
        "maxLength": 4096,
        "enum": [
          "sha256",
          "sha512",
          "keccak256"
        ]
      },
      "minItems": 0,
      "maxItems": 100
    },
    "input": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4096
    }
  },
  "required": [
    "input"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://x402-echo-service.onrender.com/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://x402-echo-service.onrender.com/hash
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z