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SHA3-256 Hex Digest (UTF-16LE)
x402
SHA3-256 Hex Digest (UTF-16LE) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-02).
Computes a SHA3-256 hash of input text encoded as UTF-16LE bytes, returned as a lowercase hex string.
Price / call$0.007
Success—
StatusUnknown
How this service works
Call when an agent needs a sha3-256 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-hex-utf16 first.
Output
A hex-encoded SHA3-256 digest string computed over the UTF-16LE byte representation of the input text. The response is a deterministic, fixed-length lowercase hexadecimal string (64 characters).
Example use cases
Integrity fingerprint for document content
“I need a SHA3-256 hex digest of this contract text encoded as UTF-16LE — can you hash 'This agreement is entered into on January 1, 2025 between Party A and Party B.' and give me the fingerprint?”
Deterministic ID from user input
“Hash the string 'user@example.com:2025-06-01' using SHA3-256 over UTF-16LE bytes and return the hex digest so I can use it as a deterministic identifier.”
Verify data integrity across systems
“I have this payload: 'invoice_id=98765&amount=250.00¤cy=USD' — please compute its SHA3-256 hex digest using UTF-16LE encoding so I can check it matches the checksum my partner sent.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha3-256-hex-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a SHA3-256 hash computed over UTF-16LE byte encoding of the input (as opposed to UTF-8), and need the result as a hex string. This is especially relevant when interoperating with systems that use UTF-16LE encoding conventions (e.g., Windows-native applications, certain .NET or legacy Microsoft systems). Prefer the unpaid sandbox version (/v1/sandbox/digest-sha3-256-hex-utf16) for testing or cost-sensitive workflows. Do not use this if you need SHA-256 (not SHA3), or if UTF-8 encoding is sufficient.
Side effects
- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Invalid or missing content-type header may cause parsing failure
- Network timeout or service unavailability returns a 5xx error
- Incorrect payment or missing x402 payment header results in a 402 Payment Required response
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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