# SHA3-224 Digest (Base64, Latin1) — agentshelf.syntexa.ch

> SHA3-224 Digest (Base64, Latin1) — agentshelf.syntexa.ch is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-02).

Computes a SHA3-224 cryptographic hash of Latin1-encoded text and returns the digest encoded as Base64.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha3-224-base64-latin1?utm_source=zero.xyz
- Price: $0.009/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-digest-base64-latin1-agentshelf-syntexa-ch-6358348e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KH9-oSPUAm2BbEyC_WBcs

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-digest-base64-latin1-agentshelf-syntexa-ch-6358348e -d '<json body>'
```

Example prompt: Hash the text 'Héllo wörld' using SHA3-224 and give me the result as a Base64 string, treating the input as Latin1 bytes.

## When to prefer this

Use this endpoint when you specifically need a SHA3-224 hash (not SHA2 or other SHA3 variants like SHA3-256/384/512) of Latin1-encoded text, and require the digest in Base64 format rather than hex. It is particularly suited for legacy systems or protocols that use Latin1 (ISO-8859-1) character encoding. If no paid call is needed, prefer the unpaid POST /v1/sandbox/digest-sha3-224-base64-latin1 endpoint first.

## Known failure modes

- Text exceeds 100,000 character limit — request rejected
- Key parameter missing or empty — authentication failure
- Text contains characters not representable in Latin1 — may produce unexpected hash
- Network timeout or service unavailability — no digest returned
- Invalid or unauthorized API key — 401/402 error

## How this service works

Call when an agent needs a sha3-224 digest of latin1 bytes, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64-latin1 first.

## Output

Returns a Base64-encoded SHA3-224 digest of the provided text, interpreted as Latin1 bytes. The response is a compact string suitable for use as a checksum, fingerprint, or deduplication key.

## 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-digest-base64-latin1-agentshelf-syntexa-ch-6358348e/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)