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SHA-512/256 Digest → Base64 (Hex Input)
x402
SHA-512/256 Digest → Base64 (Hex Input) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-29).
Computes a SHA-512/256 hash of hex-encoded byte input and returns the digest encoded as Base64.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-256 digest of hex bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64-rawhex first.
Output
Returns a Base64-encoded SHA-512/256 hash computed over the input hex bytes. The response is a compact cryptographic digest suitable for integrity verification, fingerprinting, or further cryptographic operations.
Example use cases
Content integrity fingerprint from raw bytes
“I have some binary data represented as hex — 'cafebabe00010203ff' — can you compute its SHA-512/256 digest and give me the result as Base64 so I can use it as a content fingerprint?”
Keyed hash for message authentication
“I need a SHA-512/256 hash of these hex-encoded bytes '0a1b2c3d4e5f' using the key 'mySecretKey' — return it as Base64 for my message verification check.”
Cryptographic checksum for audit log entry
“Compute a SHA-512/256 digest of this hex byte string '48656c6c6f576f726c64' and encode the result as Base64 — I need it for an audit log integrity record.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-256-base64-rawhex?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need a SHA-512/256 (truncated SHA-512) digest of raw bytes expressed as hex, with the output in Base64 format. Prefer the free sandbox variant (/v1/sandbox/digest-sha512-256-base64-rawhex) if available. Choose this over SHA-256 or SHA-512 endpoints when your security protocol or interoperability requirement mandates the SHA-512/256 algorithm specifically (common in some TLS and certificate workflows).
Side effects
- Invalid or non-hex characters in the text field cause a 400 Bad Request
- Input text or key exceeds maxLength limits (512 for key, 100000 for text) returns validation error
- Malformed JSON body results in a 400 error
- Payment not included or insufficient USDC returns a 402 Payment Required
- Service unavailable returns 503
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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