# MD5 Digest Base64 Encoder

> MD5 Digest Base64 Encoder is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).

Computes the MD5 hash of a given text string and returns it encoded as base64, with no network calls or LLM involved.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-md5-base64?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/md5-digest-base64-encoder-5aab2dc6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1G9BBoRiOPo8od18zbTAG

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-base64-encoder-5aab2dc6 -d '<json body>'
```

Example prompt: Can you compute the MD5 hash of the text 'Hello, World!' and give it back to me encoded as base64?

## When to prefer this

Use this endpoint when you need a fast, deterministic MD5 hash of a text string returned as base64, without involving any LLM or external network calls. It is ideal for checksum generation, cache key derivation, or deduplication fingerprints where MD5+base64 is the required format. Prefer the free sandbox endpoint (/v1/sandbox/digest-md5-base64) for testing before paying the $0.002 USDC fee.

## Known failure modes

- Empty or missing text field causes a validation error
- Text exceeding 100,000 characters is rejected
- Invalid or missing API key results in an authentication failure
- Malformed request body returns a 400 Bad Request

## How this service works

Call when an agent needs a md5 digest of text, encoded as base64. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64 first.

## Output

Returns a base64-encoded MD5 digest string of the submitted text, computed entirely server-side with no external network requests or LLM inference.

## 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-base64-encoder-5aab2dc6/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)