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SHA3-512 Base64url Digest (UTF-16LE)
x402
SHA3-512 Base64url 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 SHA3-512 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a base64url-encoded string.
Price / call$0.007
Success—
StatusUnknown
How this service works
Call when an agent needs a sha3-512 digest of utf16le bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64url-utf16 first.
Output
Returns a base64url-encoded SHA3-512 digest string computed over the UTF-16LE byte representation of the input text. The output is a URL-safe, compact cryptographic hash suitable for integrity checks, identifiers, or comparison operations.
Example use cases
Integrity fingerprint for document storage
“I need a SHA3-512 base64url fingerprint of this contract text so I can store it alongside the document and verify it hasn't been tampered with later: 'This agreement is entered into on January 1, 2025...'”
URL-safe hash for API token generation
“Generate a SHA3-512 digest encoded as base64url for the string 'user:42:session:abc123' — I need it URL-safe so I can embed it directly in a link.”
Cross-platform hash verification with UTF-16LE
“My Windows app encodes strings as UTF-16LE before hashing. Can you compute the SHA3-512 base64url digest of 'ChecksumMe' using UTF-16LE bytes so I can verify my app's output matches?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha3-512-base64url-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need SHA3-512 hashing (as opposed to SHA2, BLAKE2b, or other algorithms) with UTF-16LE byte encoding and base64url output — particularly useful when interfacing with Windows-native systems that default to UTF-16LE, or when the hash must be embedded in URLs or filenames without encoding issues.
Side effects
- Empty or missing text field returns validation error
- Text exceeding 100,000 characters is rejected
- Key field exceeding 512 characters is rejected
- Malformed JSON request body returns 400 error
- Payment failure or insufficient USDC balance returns 402
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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