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SHA-512/256 Hex Digest of Raw Hex Bytes (Paid)
x402
SHA-512/256 Hex Digest of Raw Hex Bytes (Paid) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-15).
Computes a SHA-512/256 hash of input data provided as raw hex bytes, returning the digest encoded as a hex string.
Price / call$0.005
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-256 digest of hex bytes, encoded as hex. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-hex-rawhex first.
Output
Returns a SHA-512/256 cryptographic digest of the provided hex-encoded bytes, expressed as a lowercase hex string. The output represents the 256-bit hash produced by the SHA-512/256 truncated variant of SHA-2.
Example use cases
Integrity check of binary payload
“I have this raw binary blob encoded as hex: 'deadbeef0102030405'. Can you run SHA-512/256 on it and give me the hex digest so I can verify it hasn't been tampered with?”
Fingerprinting hex-encoded file chunk
“Take this hex string representing a chunk of a file — 'cafebabe001122334455aabbccdd' — and compute its SHA-512/256 hash in hex so I can use it as a fingerprint.”
Keyed hash computation for audit log
“Using key 'audit-2024' and the hex bytes '0f1e2d3c4b5a6978', compute the SHA-512/256 hex digest I can attach to our audit log entry.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-256-hex-rawhex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need SHA-512/256 (the SHA-2 truncated variant, not SHA-256 or SHA-512) applied to raw binary data supplied as hex-encoded bytes, with the digest returned in hex. Use the free sandbox variant (/v1/sandbox/digest-sha512-256-hex-rawhex) first if available; fall back to this paid endpoint ($0.005 USDC) when the sandbox is unavailable or rate-limited.
Side effects
- Invalid hex string input (non-hex characters) resulting in a 400 error
- Input text or key exceeding length limits (100,000 and 512 chars respectively) causing rejection
- Payment failure or insufficient USDC balance resulting in 402 response
- Network timeout or service unavailability returning 5xx error
- Empty input string rejected due to minLength:1 constraint
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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