# M2MCent NLP Metadata Auditor MCP Node

> M2MCent NLP Metadata Auditor MCP Node is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.917313/call, status unknown (last checked 2026-10-09).

Validates or audits a hash value via the M2MCent NLP metadata auditor endpoint, returning a boolean result

## Facts

- Endpoint: POST https://api.m2mcent.com/nlp-metadata-auditor-mcp-385/api/execute?utm_source=zero.xyz
- Price: $0.917313/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-nlp-metadata-auditor-mcp-node-8d5ac166
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CNFqD_QfzF3rTzaonQkjl

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 m2mcent-nlp-metadata-auditor-mcp-node-8d5ac166 -d '<json body>'
```

Example prompt: Can you run this hash 'a3f9c12b7e4d...' through the M2MCent NLP metadata auditor and tell me if it comes back valid?

## When to prefer this

Use this endpoint when you need a simple boolean validation of a hash string against M2MCent's NLP metadata auditor logic, particularly within automated MCP node workflows where a pass/fail signal is sufficient and low-latency response is needed.

## Known failure modes

- Missing or malformed 'hash' field returns a 400 or validation error
- Hash not found in index may return result: false rather than an error
- Network or payment failure (x402 USDC settlement) may block request execution
- Service unavailability across the subdomain may return 5xx
- Invalid hash format may yield an immediate false rather than a processing error

## 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 a JSON object with a single boolean 'result' field indicating whether the submitted hash passed the NLP metadata audit (true = valid/pass, false = invalid/fail).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "hash"
 ],
 "properties": {
  "hash": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "result"
 ],
 "properties": {
  "result": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/m2mcent-nlp-metadata-auditor-mcp-node-8d5ac166/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)