# BLAKE2b-512 Hex Digest → Base32 Encoder

> BLAKE2b-512 Hex Digest → Base32 Encoder is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Computes a BLAKE2b-512 cryptographic digest of raw hex bytes and returns the result encoded as Base32

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-blake2b512-base32-rawhex?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blake2b-512-hex-digest-base32-encoder-6ee96a32
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IRXAVS_M5WFEJU4tXiD4Z

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-hex-digest-base32-encoder-6ee96a32 -d '<json body>'
```

Example prompt: Can you compute the BLAKE2b-512 hash of these raw hex bytes — 'deadbeef0102030405' — and give me the result as Base32?

## When to prefer this

Choose this endpoint when you specifically need a BLAKE2b-512 hash of raw hex bytes with Base32 output encoding, particularly in pipelines requiring the combination of BLAKE2b's security with Base32's ASCII-safe representation. Use the free sandbox variant (/v1/sandbox/digest-blake2b512-base32-rawhex) for testing; use this paid endpoint for production usage where reliability guarantees matter.

## Known failure modes

- Invalid or non-hex input string causes a 400 error
- Key exceeds 512 character limit returns a validation error
- Empty text or key fields rejected by minLength constraint
- Malformed JSON body results in parse error
- Payment not authorized results in 402 Payment Required

## How this service works

Call when an agent needs a blake2b512 digest of hex bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base32-rawhex first.

## Output

Returns a Base32-encoded string representing the BLAKE2b-512 digest of the input interpreted as raw hex bytes. Optionally keyed if a key is provided.

## 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": [
    "68656c6c6f"
   ],
   "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-hex-digest-base32-encoder-6ee96a32/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)