# Blake2s-256 + Base32 Digest of Hex Bytes

> Blake2s-256 + Base32 Digest of Hex Bytes is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).

Computes a BLAKE2s-256 hash of raw hex-encoded bytes and returns the result encoded as Base32.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-blake2s256-base32-rawhex?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blake2s-256-base32-digest-of-hex-bytes-3be0a1dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xtuo5ZrTT8v3aecuTF4TE

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 blake2s-256-base32-digest-of-hex-bytes-3be0a1dc -d '<json body>'
```

Example prompt: Can you compute the BLAKE2s-256 hash of this hex string — 'deadbeef0102030405' — and give me the result encoded as Base32? Use the key 'mysecretkey' for a keyed digest.

## When to prefer this

Choose this endpoint when you specifically need a BLAKE2s-256 hash (not SHA-256, SHA-3, or BLAKE2b) of raw bytes that are provided as a hex string, and require the digest output in Base32 encoding. Prefer it over the free sandbox variant only when the sandbox is unavailable or rate-limited.

## Known failure modes

- Invalid or non-hex characters in the 'text' field causing a 400 error
- Empty or missing 'text' field (minLength:1 violated)
- Key exceeding 512 characters causing a 400 validation error
- Payment failure or insufficient USDC balance resulting in a 402 response
- Malformed request body returning a parsing error

## How this service works

Call when an agent needs a blake2s256 digest of hex bytes, encoded as base32. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base32-rawhex first.

## Output

Returns a Base32-encoded string representing the BLAKE2s-256 digest of the provided hex-encoded bytes. If a key is provided, the hash is keyed (BLAKE2s MAC); otherwise it is an unkeyed digest.

## 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/blake2s-256-base32-digest-of-hex-bytes-3be0a1dc/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)