# Base64 Payload Decoder

> Base64 Payload Decoder is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-16).

Decodes a base64-encoded string and returns the original plaintext payload

## Facts

- Endpoint: POST https://api.m2mcent.com/base64-payload-decoder-mcp/api/process?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base64-payload-decoder-216ee72c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_16JuYLmL55fRakbJOmb7X

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 base64-payload-decoder-216ee72c -d '<json body>'
```

Example prompt: Can you decode this base64 string for me and show me what it actually says: 'SGVsbG8gV29ybGQh'?

## When to prefer this

Choose this endpoint when you need a quick, paid, reliable API call to decode base64 strings without running local code — useful in agentic workflows where executing local binaries is not available or trusted. Best for single-string decoding in automated pipelines.

## Known failure modes

- Invalid base64 string — input contains characters outside the base64 alphabet
- Malformed padding — base64 string has incorrect padding characters
- Empty input — no data field provided
- Binary or non-UTF8 output — decoded content may not be human-readable text if original was binary data

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns the decoded plaintext content of the input base64 string, revealing the original data that was encoded.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base64-payload-decoder-216ee72c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)