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SHA3-256 Digest (UTF-16LE → Base64URL)
x402
SHA3-256 Digest (UTF-16LE → Base64URL) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-24).
Computes a SHA3-256 hash of text encoded as UTF-16LE bytes and returns the digest as a base64url-encoded string.
Price / call$0.003
Success—
StatusUnknown
How this service works
Call when an agent needs a sha3-256 digest of utf16le bytes, encoded as base64url. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64url-utf16 first.
Output
Returns a SHA3-256 cryptographic digest of the input text (interpreted as UTF-16LE bytes), encoded as a base64url string. The response is deterministic for any given input text.
Example use cases
Integrity fingerprint for document text
“I need a tamper-evident fingerprint of this contract text — compute a SHA3-256 hash of it using UTF-16LE encoding and give me the base64url digest so I can store it alongside the file.”
Deduplication key for multilingual content
“I have some Japanese text I need to deduplicate in my database — can you generate a SHA3-256 base64url hash of it using UTF-16LE encoding so I can use it as a unique key?”
Verify message authenticity token
“Hash this API response body using SHA3-256 over UTF-16LE bytes and return the base64url digest — I need to compare it against the expected checksum from the server.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha3-256-base64url-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a SHA3-256 hash with UTF-16LE byte encoding and base64url output format — for example, when interfacing with systems that use Windows-style UTF-16LE text encoding or when a downstream system expects base64url-encoded SHA3-256 digests. Prefer the free sandbox endpoint (/v1/sandbox/digest-sha3-256-base64url-utf16) for testing. Use sibling endpoints on the same host if you need a different hash algorithm, character encoding (e.g. latin1), or output encoding (e.g. hex, base32).
Side effects
- Text exceeds 100,000 character limit — request rejected
- Key field is empty or missing — validation error
- Text field is empty or missing — validation error
- Payment of $0.003 USDC not provided — HTTP 402 returned
- Text contains characters that cause UTF-16LE encoding issues
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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