# BLAKE2b-512 Digest with Base32 Encoding (Latin-1 Input)

> BLAKE2b-512 Digest with Base32 Encoding (Latin-1 Input) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-29).

Computes a BLAKE2b-512 cryptographic hash of Latin-1 encoded text and returns the digest encoded as Base32.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-blake2b512-base32-latin1?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blake2b-512-digest-with-base32-encoding-latin-1-input-41b8dde8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VyxtnIen14V7XgH754J07

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 blake2b-512-digest-with-base32-encoding-latin-1-input-41b8dde8 -d '<json body>'
```

Example prompt: Hash this string using BLAKE2b-512 and give me the result in Base32 — the text is 'Hello, world!' encoded as Latin-1, and use the key 'mysecretkey'.

## When to prefer this

Choose this endpoint when you specifically need a BLAKE2b-512 hash of Latin-1-encoded text with Base32 output, rather than hex or Base64 encoding. Prefer the free sandbox endpoint (/v1/sandbox/digest-blake2b512-base32-latin1) first; use this paid endpoint when the sandbox is unavailable or rate-limited. Ideal when downstream systems expect Base32-encoded BLAKE2b digests, or when building keyed MACs using BLAKE2b's native keying support with Latin-1 text data.

## Known failure modes

- Text contains characters outside Latin-1 range — encoding mismatch may produce unexpected hash
- Key exceeds 512 characters — rejected by schema validation
- Empty text or key — rejected by minLength:1 constraints
- Non-Latin-1 input treated as Latin-1 may silently produce incorrect digests
- Service unavailability or payment failure returns 402 or 5xx error

## How this service works

Call when an agent needs a blake2b512 digest of latin1 bytes, encoded as base32. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base32-latin1 first.

## Output

Returns a Base32-encoded string representing the BLAKE2b-512 hash of the provided Latin-1 text input, optionally keyed. The output is a deterministic, fixed-length digest suitable for integrity checks, fingerprinting, or keyed message authentication.

## 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/blake2b-512-digest-with-base32-encoding-latin-1-input-41b8dde8/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)