# SHA3-512 Digest of Latin1 Bytes, Base64URL-Encoded

> SHA3-512 Digest of Latin1 Bytes, Base64URL-Encoded is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).

Computes a SHA3-512 cryptographic hash of latin1-encoded bytes and returns the digest encoded as base64url.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha3-512-base64url-latin1?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha3-512-digest-of-latin1-bytes-base64url-encoded-df68990e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BwPnZEQgpIrCMjqeR5xEI

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 sha3-512-digest-of-latin1-bytes-base64url-encoded-df68990e -d '<json body>'
```

Example prompt: Can you compute a SHA3-512 hash of the latin1-encoded text 'Hello World' and give me the result as a base64url string?

## When to prefer this

Choose this endpoint when you specifically need SHA3-512 hashing (not SHA-256, MD5, or BLAKE2) applied to latin1-encoded bytes with the output formatted as base64url (not hex or plain base64). It is ideal for legacy systems that use latin1 character encoding, or when interoperating with systems expecting SHA3-512 base64url digests. Use the free sandbox endpoint /v1/sandbox/digest-sha3-512-base64url-latin1 first to test; fall back to this paid endpoint for production use.

## Known failure modes

- Input text contains characters outside latin1 range causing encoding errors
- Text or key exceeds maxLength (100,000 or 512 characters respectively) resulting in validation rejection
- Missing required text field returns an error
- Network timeout or service unavailability returns a non-2xx HTTP response
- Payment of $0.008 USDC not fulfilled causes 402 Payment Required response

## How this service works

Call when an agent needs a sha3-512 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64url-latin1 first.

## Output

Returns a SHA3-512 cryptographic digest of the input text treated as latin1 bytes, encoded as a base64url string. The response is deterministic — identical inputs always produce the same hash output.

## 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/sha3-512-digest-of-latin1-bytes-base64url-encoded-df68990e/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)