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SHA-256 Digest of Text or Raw Bytes
x402
SHA-256 Digest of Text or Raw Bytes is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Computes the SHA-256 cryptographic hash of a given text string or raw hex-encoded bytes, returning the digest.
Price / call$0.001
Success—
StatusUnknown
How this service works
SHA-256 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network
Output
Returns a JSON object containing the SHA-256 digest of the provided input, along with a payment receipt including the transaction hash, amount in USD, and a unique receipt ID, plus a timestamp of when the hash was generated.
Example use cases
Content integrity fingerprint
“Hash this message with SHA-256 so I can verify it hasn't been tampered with later: 'The contract terms are: payment due by June 1st.'”
Blockchain data commitment
“I need the SHA-256 digest of this hex-encoded byte sequence so I can commit it to a smart contract: 0x48656c6c6f20626c6f636b636861696e”
Deduplication key generation
“Give me the SHA-256 hash of the string 'user_session_12345_2024-06-01' so I can use it as a unique cache key.”
Technical details
Endpoint
POSThttps://twin.unykorn.org/hash-sha256?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, on-demand SHA-256 hash of a text string or raw hex bytes, especially in blockchain/Web3 contexts where payment receipts and auditability matter. Prefer this over the sibling canonical-digests endpoint when you specifically need only SHA-256 and not sha512-256 or blake2b. Ideal for agents that need to commit data to a smart contract, verify integrity, or generate deterministic content fingerprints.
Side effects
- Input text exceeds 49152 character limit — request rejected
- Malformed hex string (not matching ^0x[0-9a-fA-F]*$) — validation error
- Neither text nor hex param provided — missing input error
- Network or payment failure causing 402 payment required error
- Invalid or insufficient payment — transaction not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "hash-sha256",
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.001,
"receipt_id": "g402-<16hex>"
},
"generated_at": "<iso8601>"
}
}Tags
x402
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