# Blake2s256 Base32 UTF-16LE Digest

> Blake2s256 Base32 UTF-16LE Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-29).

Computes a BLAKE2s-256 hash of text encoded as UTF-16LE bytes, then returns the digest encoded as Base32

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-blake2s256-base32-utf16?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blake2s256-base32-utf-16le-digest-28510116
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LlRH8nQYG6wtWL7Lrl_QW

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability blake2s256-base32-utf-16le-digest-28510116 -d '<json body>'
```

Example prompt: Can you compute the BLAKE2s-256 hash of the text 'Hello, world!' using UTF-16LE encoding and give me the result as a Base32 string, using the key 'mysecretkey'?

## When to prefer this

Choose this endpoint when you specifically need a BLAKE2s-256 hash computed over the UTF-16LE byte representation of a Unicode string and the output must be Base32-encoded — a niche but precise combination useful for Windows-compatible hashing or systems that require Base32 output. If cost is a concern, prefer the unpaid sandbox endpoint at POST /v1/sandbox/digest-blake2s256-base32-utf16 first.

## Known failure modes

- Missing or empty 'text' field returns a validation error
- Key exceeding 512 characters rejected
- Text exceeding 100,000 characters rejected
- Invalid USDC payment or insufficient funds results in 402 Payment Required
- Malformed request body returns 400 Bad Request

## How this service works

Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base32-utf16 first.

## Output

Returns a Base32-encoded string representing the BLAKE2s-256 digest of the input text after encoding it as UTF-16LE bytes, optionally using a provided key for keyed hashing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "key": {
   "type": "string",
   "maxLength": 512,
   "minLength": 1,
   "description": "HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored."
  },
  "text": {
   "type": "string",
   "examples": [
    "hello"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "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."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blake2s256-base32-utf-16le-digest-28510116/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)