# MD5 Digest (Base64URL, Latin-1 Encoding)

> MD5 Digest (Base64URL, Latin-1 Encoding) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-29).

Computes an MD5 hash of Latin-1-encoded bytes from a given text string and returns the digest encoded as base64url.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-md5-base64url-latin1?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/md5-digest-base64url-latin-1-encoding-55de0c96
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UlOMFEZ0buCGI9EQ8VaoX

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 md5-digest-base64url-latin-1-encoding-55de0c96 -d '<json body>'
```

Example prompt: Compute the MD5 digest of the text 'Hello, World!' using Latin-1 byte encoding and give me the result as a base64url string.

## When to prefer this

Choose this endpoint when you specifically need an MD5 digest of text that is encoded as Latin-1 (ISO-8859-1) bytes and you require the output in base64url format — for example, when integrating with legacy systems that use Latin-1 encoding, or when you need a URL-safe compact hash. Use the free sandbox endpoint first to test. Prefer SHA-256 or BLAKE2 endpoints on the same platform if cryptographic strength matters more than MD5 compatibility.

## Known failure modes

- Input text contains characters outside the Latin-1 range, which may cause encoding errors or unexpected hash values
- Text or key field is empty or exceeds the maximum length (100,000 characters for text, 512 for key), resulting in a validation error
- Network or upstream service unavailability causing a timeout or 5xx error
- Payment failure or insufficient USDC balance resulting in a 402 Payment Required response

## How this service works

Call when an agent needs a md5 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64url-latin1 first.

## Output

Returns a base64url-encoded string representing the MD5 hash of the input text treated as Latin-1-encoded bytes. The response is a compact, URL-safe hash suitable for checksumming, fingerprinting, or comparison with existing MD5/Latin-1 digests.

## 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/md5-digest-base64url-latin-1-encoding-55de0c96/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)