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BLAKE2s-256 Hex Digest
x402
BLAKE2s-256 Hex Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-01).
Computes a BLAKE2s-256 cryptographic hash of input text and returns it as a lowercase hex-encoded string
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs a blake2s256 digest of text, encoded as hex. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-hex first.
Output
A hex-encoded string representing the 32-byte (256-bit) BLAKE2s digest of the input text. If a key is provided, the result is a keyed BLAKE2s-256 MAC. The response is deterministic and has no external dependencies.
Example use cases
Content integrity fingerprinting
“Hash this document text with BLAKE2s-256 and give me the hex digest so I can use it as a content fingerprint: 'The quick brown fox jumps over the lazy dog.'”
Keyed BLAKE2s MAC generation
“Generate a keyed BLAKE2s-256 hex digest of the message 'user:alice:action:login' using the key 'mysecretkey123'.”
Deduplication key for cached data
“I need a BLAKE2s-256 hex hash of this JSON payload to use as a cache key: '{"userId":42,"action":"checkout","items":[1,2,3]}'”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-blake2s256-hex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a BLAKE2s-256 hash specifically encoded as hexadecimal, rather than base64 or base64url. Prefer this over SHA-family endpoints when BLAKE2s compatibility is required (e.g. for systems that use BLAKE2s for checksums or MACs). Use the free sandbox endpoint (/v1/sandbox/digest-blake2s256-hex) first to test; use this paid endpoint in production or when the sandbox is unavailable.
Side effects
- Text or key exceeds maximum length (100,000 or 512 chars respectively) — returns validation error
- Missing or empty text field — returns 400-level error
- Payment not provided or insufficient USDC — returns 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
Reviews
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Zero review prompt (fires after every successful call)
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