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SHA-512/256 Digest (Base64, UTF-16LE) — agentshelf.syntexa.ch
x402
SHA-512/256 Digest (Base64, UTF-16LE) — agentshelf.syntexa.ch is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-19).
Computes a SHA-512/256 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a Base64 string.
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-256 digest of utf16le bytes, encoded as base64. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64-utf16 first.
Output
Returns a Base64-encoded SHA-512/256 digest of the input text after it has been encoded as UTF-16LE bytes. The output is a compact, fixed-length cryptographic hash suitable for integrity checking, deduplication, or fingerprinting.
Example use cases
Integrity fingerprint for document content
“Take this document text — 'Annual Report Q4 2024: Revenue grew 12% year-over-year...' — and give me its SHA-512/256 Base64 hash using UTF-16LE encoding so I can use it as a tamper-evident fingerprint.”
Deterministic ID generation from user input
“I need a stable, unique identifier for the string 'user-profile:john.doe@example.com' — can you compute its SHA-512/256 digest with UTF-16LE bytes and return it as Base64?”
Cross-platform hash verification for Windows strings
“A Windows app encoded the string 'SensitivePayload123' as UTF-16LE before hashing it with SHA-512/256 and got a Base64 result — can you reproduce that hash so I can verify they match?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-256-base64-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a SHA-512/256 (truncated SHA-512) digest of text that is first encoded as UTF-16LE bytes — a common requirement when interoperating with Windows/.NET systems, Microsoft APIs, or any pipeline that natively uses UTF-16LE strings. Prefer the free sandbox variant (/v1/sandbox/digest-sha512-256-base64-utf16) for testing. Use this paid endpoint for production workloads or when the sandbox is unavailable.
Side effects
- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Missing or malformed payment header results in a 402 Payment Required response
- Invalid UTF-16LE encoding edge cases (e.g. lone surrogates) may produce unexpected output
- Network timeout or service unavailability returns a 5xx error
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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