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SHA-256 Base64 UTF-16LE Digest
x402
SHA-256 Base64 UTF-16LE Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).
Computes a SHA-256 hash of text encoded as UTF-16LE bytes, returned as a Base64 string
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs a sha256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64-utf16 first.
Output
Returns a Base64-encoded string representing the SHA-256 hash computed over the UTF-16LE byte representation of the input text. The result is a deterministic, fixed-length cryptographic digest suitable for integrity checks, fingerprinting, or signature verification.
Example use cases
Verify document integrity with Unicode support
“I need to verify the integrity of this document content — can you compute a SHA-256 base64 digest of the text 'Invoice #4821: €2,500 due on 2024-06-01' using UTF-16LE encoding with key 'invoice-check'? I want to store the hash for later comparison.”
Generate deterministic fingerprint for multilingual text
“I have some Japanese and Chinese text that needs a consistent cryptographic fingerprint — please compute the SHA-256 base64 digest of '日本語テスト中文测试' encoded as UTF-16LE with key 'lang-check'.”
Checksum API payload with Unicode characters
“Before sending this payload to our partner system, compute a SHA-256 base64 hash of the string 'Ünïcödé Pàyloàd 2024' in UTF-16LE encoding using key 'payload-sig' so I can include it as a signature header.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha256-base64-utf16?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need a SHA-256 digest of text computed over its UTF-16LE byte encoding (common in Windows/.NET environments and certain API signature schemes) returned as Base64. It is distinct from standard UTF-8-based SHA-256 hashing, making it the right choice for interoperability with systems that use UTF-16LE internally, such as Microsoft Office, certain XML signing protocols, or legacy Windows applications. Prefer the free sandbox endpoint `/v1/sandbox/digest-sha256-base64-utf16` for testing before using this paid version.
Side effects
- Empty or missing text field returns validation error
- Text exceeding 100,000 characters is rejected
- Missing or empty key field returns validation error
- Key exceeding 512 characters is rejected
- Payment failure (insufficient USDC balance) results in 402 response
- Network timeout if the service is temporarily unavailable
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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