# SHA-512/224 Hex Digest (Latin-1 Input)

> SHA-512/224 Hex Digest (Latin-1 Input) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Computes a SHA-512/224 cryptographic hash of Latin-1 encoded text and returns the result as a lowercase hexadecimal string.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha512-224-hex-latin1?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha-512-224-hex-digest-latin-1-input-b3f461a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3mPHT0CcvIwUVWs_oqusH

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 sha-512-224-hex-digest-latin-1-input-b3f461a5 -d '<json body>'
```

Example prompt: Compute the SHA-512/224 hex digest of the Latin-1 text 'Hello, world!' for me.

## When to prefer this

Choose this endpoint when you specifically need a SHA-512/224 (truncated SHA-512) digest rather than the more common SHA-256 or SHA-3, and your input is Latin-1 encoded text. Useful when interoperating with systems that mandate SHA-512/224 for compliance or compatibility reasons. Try the free sandbox endpoint POST /v1/sandbox/digest-sha512-224-hex-latin1 first before using this paid version.

## Known failure modes

- Input text contains non-Latin-1 characters — may cause encoding errors or unexpected results
- Text or key exceeds maximum length limits (text >100,000 chars, key >512 chars) — validation error returned
- Empty text or key fields — rejected due to minLength:1 constraint
- Payment failure or insufficient USDC balance — 402 response returned
- Network timeout or service unavailability — connection error

## How this service works

Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as hex. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-hex-latin1 first.

## Output

Returns a lowercase hexadecimal string representing the SHA-512/224 digest (56 hex characters / 224 bits) of the provided Latin-1 encoded text 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/sha-512-224-hex-digest-latin-1-input-b3f461a5/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)