SHA-256 and Keccak-256 Hash Calculator

x402

SHA-256 and Keccak-256 Hash Calculator is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-02).

Computes SHA-256 and Keccak-256 cryptographic hashes of a given text string or hex-encoded data in a single call.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call x402 APIs for AI agents: OpenAI-compatible LLM chat, perp funding and arbitrage spreads, crypto prices, gas, FX, Solana SPL mint audit, token price by contract, x402 delivery-receipt verification, web search, clean page extraction, batch tools and deterministic code-security scanning. USDC on Base or Solana, no signup, no API key, from $0.0001 a call.

Output

Returns a JSON object containing the SHA-256 hex digest, the Keccak-256 hex digest, and the byte length of the input, along with a product identifier ('scanpay.hash').

Example use cases

Verify smart contract input data

“I need the Keccak-256 hash of the hex string 0xdeadbeef — that's what I want to submit to the smart contract. Can you compute it for me?”

Integrity check for a message

“Compute the SHA-256 hash of the text 'The quick brown fox jumps over the lazy dog' so I can compare it against the expected checksum.”

Blockchain address derivation helper

“I'm building a wallet tool and need both the SHA-256 and Keccak-256 hashes of the raw public key bytes 0x04a1b2c3d4e5f6 — can you run that through the hash endpoint?”

Technical details

Endpoint

GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/hash?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need both SHA-256 and Keccak-256 hashes in a single API call, especially for blockchain/Web3 workflows where Keccak-256 (Ethereum-compatible) is required alongside the standard SHA-256. Prefer it over generic hashing libraries when running inside an agent environment that uses x402 micropayment rails and you want a hosted, stateless computation with no dependencies.

Side effects

Missing 'text' or 'hex' query parameter — endpoint requires at least one input
Invalid hex string (not 0x-prefixed or malformed) — likely returns an error or unexpected result
Empty string input — may return hash of empty bytes rather than an error
Payment failure (x402) — if USDC payment of $0.001 is not provided, request will be rejected with 402

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "bytes": 5,
    "sha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
    "product": "scanpay.hash",
    "keccak256": "1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8"
  }
}

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