# SHA-512/224 Digest — Base64-Encoded, Latin-1 Input

> SHA-512/224 Digest — Base64-Encoded, Latin-1 Input is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Computes a SHA-512/224 cryptographic hash of Latin-1-encoded text and returns the digest as a Base64 string.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64-latin1?utm_source=zero.xyz
- Price: $0.005/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-digest-base64-encoded-latin-1-input-27773cf8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_plugEdaJLFJ_kAbPorx94

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-digest-base64-encoded-latin-1-input-27773cf8 -d '<json body>'
```

Example prompt: Can you compute the SHA-512/224 hash of the Latin-1 text 'Héllo, wörld!' and give me the result as a Base64 string?

## When to prefer this

Choose this endpoint when you specifically need a SHA-512/224 (truncated SHA-512) digest of Latin-1 (ISO-8859-1) encoded text returned in Base64 format. It is ideal for legacy system interoperability where Latin-1 encoding is required, or when a compact 224-bit hash with Base64 output is mandated by a protocol or specification. Prefer the free sandbox endpoint (POST /v1/sandbox/digest-sha512-224-base64-latin1) first if available; use this paid endpoint when the sandbox is absent or quota-limited. Choose alternative sibling endpoints if you need a different hash algorithm (e.g. BLAKE2b, BLAKE2s), a different encoding (hex, base32), or UTF-8/Unicode input.

## Known failure modes

- Input text contains characters not representable in Latin-1 (non-ISO-8859-1 characters), causing encoding failure
- text field is empty or missing, triggering a validation error
- text exceeds 100,000 character limit, returning a payload-too-large error
- key field exceeds 512 characters
- Service unavailable or payment not processed, returning a 402 or 5xx error

## How this service works

Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as base64. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64-latin1 first.

## Output

Returns a Base64-encoded SHA-512/224 hash digest of the provided Latin-1 text input. The output is a short, fixed-length Base64 string representing the 224-bit truncated SHA-512 hash computed over the Latin-1 byte encoding of the input text.

## 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-digest-base64-encoded-latin-1-input-27773cf8/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)