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x402 Utils - Cryptographic Hash
x402
x402 Utils - Cryptographic Hash is a paid API for AI agents from qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).
Computes MD5, SHA-1, SHA-256, SHA-512, SHA3-256, and Keccak-256 (Ethereum) hashes of text or binary data, returning results as hex and base64
Price / call$0.001
Success—
StatusUnknown
How this service works
MD5, SHA-1, SHA-256, SHA-512, SHA3-256 and Keccak-256 (Ethereum) of a text, or of bytes given as hex or base64, as hex and base64.
Output
Returns a JSON object with each requested hash algorithm as a key, each containing the hash digest in both 'hex' and 'base64' string formats. If no algorithms are specified, all six (md5, sha1, sha256, sha512, sha3-256, keccak256) are returned.
Example use cases
Ethereum contract data hashing
“I need the Keccak-256 hash of the hex bytes 0x48656c6c6f — give me both hex and base64 output, treating the input as hex-encoded bytes.”
File integrity checksum generation
“Generate SHA-256 and SHA-512 checksums of this text so I can verify it hasn't been tampered with: 'The quick brown fox jumps over the lazy dog'”
Blockchain address derivation prep
“Compute the SHA3-256 and Keccak-256 hashes of this base64-encoded binary payload: dGVzdGRhdGE= — input is base64 encoded.”
Technical details
Endpoint
POSThttps://qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws/v1/hash?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need cryptographic hashes of text or binary data — especially when multiple algorithms are needed simultaneously, when Keccak-256 (Ethereum-native) is required, or when results in both hex and base64 are needed without any local computation. Ideal for agents operating in blockchain/Ethereum contexts or needing to verify data integrity without a local hashing library.
Side effects
- Input text exceeds 1 MB limit — request rejected
- Invalid input encoding enum value — validation error returned
- Unsupported algorithm name in algorithms array — validation error
- Malformed base64 or hex input when input encoding is 'base64' or 'hex' — decoding error
- Payment failure or insufficient USDC balance — 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | what to hash (up to 1 MB) |
| input | string | how text is encoded (default utf8) |
| algorithms | array | which hashes (default all) |
Tags
x402
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