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SHA-512/256 Digest as Base64
x402
SHA-512/256 Digest as Base64 is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-01).
Computes a SHA-512/256 cryptographic hash of input text and returns the digest encoded as base64
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-256 digest of text, encoded as base64. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64 first.
Output
Returns a base64-encoded SHA-512/256 cryptographic digest of the submitted text. The output is a fixed-length base64 string representing the 256-bit hash. No network calls or LLM inference are involved — the result is deterministic and reproducible given the same input.
Example use cases
Content integrity fingerprinting
“Take this article text and give me its SHA-512/256 hash in base64 so I can use it as a fingerprint to detect any future changes.”
Message authentication code generation
“Hash this API payload 'user_id=42&action=purchase&amount=99.99' with SHA-512/256 and return the base64 digest so I can include it as a message signature.”
Deduplication key for stored documents
“Give me the SHA-512/256 base64 hash of this contract text so I can use it as a deduplication key before storing it in the database.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-256-base64?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a SHA-512/256 hash specifically encoded as base64 (not hex or base32). SHA-512/256 offers stronger collision resistance than SHA-256 while producing a 256-bit output, making it suitable for security-sensitive contexts. Prefer the free sandbox endpoint (/v1/sandbox/digest-sha512-256-base64) for testing; use this paid endpoint for production workloads. If you need hex or base32 encoding, use the sibling endpoints on the same host.
Side effects
- Missing or empty 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Missing or invalid API key returns an authentication error
- Payment not processed results in a 402 Payment Required response
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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