# SHA3-256 / Base32 / Latin1 Digest

> SHA3-256 / Base32 / Latin1 Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-11).

Computes a SHA3-256 cryptographic hash of a latin1-encoded input string and returns the digest encoded as base32.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha3-256-base32-latin1?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha3-256-base32-latin1-digest-37c1ee16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WQMZarVONSUlzqNCAp1tR

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 sha3-256-base32-latin1-digest-37c1ee16 -d '<json body>'
```

Example prompt: Hash the text 'Hello World' as latin1 bytes using SHA3-256 and give me the result encoded in base32.

## When to prefer this

Choose this endpoint when you specifically need SHA3-256 hashing with latin1 byte interpretation and base32 output encoding. Prefer the free sandbox variant (/v1/sandbox/digest-sha3-256-base32-latin1) when available to avoid the $0.007 USDC cost. Use this paid endpoint when the sandbox is unavailable or rate-limited. If you need a different hash algorithm (e.g. MD5, RIPEMD-160, SHA3-224), encoding (e.g. hex, base64), or byte interpretation (e.g. UTF-16LE, hex bytes), choose the matching sibling endpoint on the same service.

## Known failure modes

- Input text exceeds 100,000 character limit — request rejected
- Input text or key is empty or missing — validation error
- Text contains characters not representable in latin1 encoding — encoding error
- Payment of $0.007 USDC not provided or insufficient — 402 Payment Required
- Network timeout or service unavailable — 5xx error

## How this service works

Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as base32. Send JSON {"text":"hello"}. Exact $0.007 USDC on Base. Try unpaid POST /v1/sandbox/digest-sha3-256-base32-latin1 first.

## Output

Returns a base32-encoded string representing the SHA3-256 digest of the input text interpreted as latin1 bytes. The digest is deterministic and fixed-length, suitable for checksums, fingerprinting, and integrity verification.

## 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/sha3-256-base32-latin1-digest-37c1ee16/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)