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SHA3-256 Digest with Base64url Encoding (Raw Hex Input)
x402
SHA3-256 Digest with Base64url Encoding (Raw Hex Input) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-29).
Computes a SHA3-256 cryptographic hash of hex-encoded bytes and returns the digest encoded as base64url.
Price / call$0.005
Success—
StatusUnknown
How this service works
Call when an agent needs a sha3-256 digest of hex bytes, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64url-rawhex first.
Output
Returns a SHA3-256 cryptographic digest of the input hex bytes, encoded as a base64url string. The output is a compact, URL-safe representation of the hash suitable for use in identifiers, integrity checks, or further cryptographic operations.
Example use cases
Integrity fingerprint for blockchain data
“I have a raw transaction payload as hex bytes — '4f6b3a1c...ff' — can you compute its SHA3-256 digest in base64url so I can use it as an integrity fingerprint?”
Verify hex payload hash in audit log
“Our audit system stores SHA3-256 base64url hashes of hex-encoded records. Can you hash this hex string '0a1b2c3d4e5f' with SHA3-256 and give me the base64url output so I can compare it against the stored value?”
Generate content-addressable ID from hex data
“I need a content-addressable identifier for this binary blob stored as hex: 'cafe1234abcd'. Please SHA3-256 hash it and return the result as base64url.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha3-256-base64url-rawhex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a SHA3-256 hash (not SHA2/MD5/BLAKE) of raw hex-encoded bytes returned in base64url format. It is distinct from endpoints handling plain text or binary input and those returning hex or base64 (non-url) output. Use the free sandbox endpoint POST /v1/sandbox/digest-sha3-256-base64url-rawhex first for testing before paying $0.005 USDC per call.
Side effects
- Invalid hex string input (non-hex characters) may result in an error or rejected request
- Input exceeding maxLength of 100,000 characters will be rejected
- Payment failure or insufficient USDC balance returns HTTP 402
- Malformed request body returns 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| key | string | HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored. |
| text | string | Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text. |
Tags
x402
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