# SHA3-224 Hex Digest of Latin1 Bytes

> SHA3-224 Hex Digest of Latin1 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 SHA3-224 cryptographic hash of latin1-encoded bytes and returns the result as a lowercase hex string.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha3-224-hex-latin1?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/sha3-224-hex-digest-of-latin1-bytes-ce4500bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G9rVBUPcQ6AAW84JBuyqL

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 sha3-224-hex-digest-of-latin1-bytes-ce4500bc -d '<json body>'
```

Example prompt: Can you compute the SHA3-224 hex hash of this latin1-encoded text: 'Héllo wörld — données en latin1' using key 'my-key-001'?

## When to prefer this

Choose this endpoint when you specifically need a SHA3-224 hash of text that is interpreted as latin1 (ISO-8859-1) bytes rather than UTF-8, and you need the output in hexadecimal format. Use the free sandbox variant (/v1/sandbox/digest-sha3-224-hex-latin1) first to test. Prefer sibling endpoints if you need a different hash algorithm (SHA256, SHA3-256), a different encoding (base64, base32, base64url), or UTF-8 input instead of latin1.

## Known failure modes

- Input text contains characters not representable in latin1, causing encoding errors
- Text or key field is empty or exceeds length limits (key max 512 chars, text max 100000 chars)
- Missing required fields returns a validation error
- Payment of $0.006 USDC not fulfilled causes a 402 Payment Required response

## How this service works

Call when an agent needs a sha3-224 digest of latin1 bytes, encoded as hex. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-hex-latin1 first.

## Output

Returns a lowercase hexadecimal string representing the SHA3-224 hash (56 hex characters) of the input text interpreted as latin1-encoded bytes. The response is deterministic for the same input.

## 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/sha3-224-hex-digest-of-latin1-bytes-ce4500bc/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)