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SHA-512/256 Digest (Base64url, Latin-1) — agentshelf.syntexa.ch
x402
SHA-512/256 Digest (Base64url, Latin-1) — agentshelf.syntexa.ch is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-29).
Computes a SHA-512/256 cryptographic digest of a latin1-encoded text string and returns it encoded as base64url.
Price / call$0.01
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-256 digest of latin1 bytes, encoded as base64url. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url-latin1 first.
Output
Returns a SHA-512/256 cryptographic digest of the provided latin1-encoded text string, expressed as a base64url-encoded string. The output is deterministic, URL-safe, and suitable for use as a checksum, cache key, or compact cryptographic fingerprint.
Example use cases
Data integrity fingerprint for storage
“I need a SHA-512/256 base64url fingerprint of the latin1 text 'Invoice #4821: montant dû €150' so I can store a tamper-evident checksum alongside the record.”
URL-safe hash for caching key
“Generate a URL-safe base64url SHA-512/256 hash of the latin1 string 'user_session:françoise@example.com:2024' so I can use it as a cache key in my system.”
Keyed digest for message signing
“Compute a SHA-512/256 digest of the latin1 text 'order:99281:confirmed' using key 'mysecretkey', encoded as base64url, so I can attach it as a signature to an API callback.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-256-base64url-latin1?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need specifically a SHA-512/256 digest (not SHA-256 or SHA-512) of latin1-encoded bytes, output as base64url. It is preferred over alternatives when URL-safe encoding is required and the input is latin1 text. Use the free sandbox POST /v1/sandbox/digest-sha512-256-base64url-latin1 first; fall back to this paid endpoint when the sandbox is unavailable or rate-limited.
Side effects
- Text exceeds 100,000 character limit — request rejected
- Text or key is empty or missing — validation error
- Characters outside latin1 range may produce unexpected encoding behavior
- Payment of exactly $0.01 USDC not provided — 402 Payment Required
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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