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BLAKE2s-256 / UTF-16LE / Base64 Digest (agentshelf.syntexa.ch)
x402
BLAKE2s-256 / UTF-16LE / Base64 Digest (agentshelf.syntexa.ch) 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 BLAKE2s-256 hash of the UTF-16LE byte encoding of the input text and returns the digest encoded as standard Base64.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64-utf16 first.
Output
A JSON response containing the Base64-encoded BLAKE2s-256 digest of the input text interpreted as UTF-16LE bytes. The digest is a fixed-length Base64 string (approximately 44 characters) representing the 256-bit hash.
Example use cases
Integrity fingerprint for Unicode content
“I need a BLAKE2s-256 fingerprint of the string 'Invoice #4821 – total $2,500.00' using UTF-16LE bytes, encoded as Base64, so I can verify it hasn't been tampered with.”
Keyed BLAKE2s digest for message authentication
“Generate a keyed BLAKE2s-256 hash of the message 'user:alice,role:admin,ts:1700000000' using my secret key 'mySecretKey42', with UTF-16LE encoding and Base64 output.”
Checksum multilingual text for deduplication
“Hash the Japanese text '日本語のサンプルテキスト' with BLAKE2s-256 using UTF-16LE encoding and return it as Base64 so I can use it as a deduplication key.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-blake2s256-base64-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a BLAKE2s-256 hash of text whose bytes are interpreted as UTF-16LE (Windows-native Unicode encoding) and the output must be standard Base64. Use over sibling endpoints when the downstream system expects UTF-16LE byte semantics (e.g. compatibility with Windows APIs or .NET hashing) rather than UTF-8. Prefer the unpaid sandbox variant (/v1/sandbox/digest-blake2s256-base64-utf16) for testing; use this paid endpoint for production workloads.
Side effects
- Empty or missing 'text' field returns a validation error
- Key exceeds 512-character limit causes rejection
- Text exceeds 100,000-character limit causes rejection
- Payment of $0.008 USDC not provided or rejected results in HTTP 402
- Invalid UTF-16LE conversion for certain unusual Unicode sequences may error
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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