# NLP Biometric Auditor MCP Node (m2mcent-47)

> NLP Biometric Auditor MCP Node (m2mcent-47) is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $1.120011/call, status unknown (last checked 2026-10-12).

Accepts an audio input and returns a boolean summary result, purportedly performing NLP biometric auditing on the provided audio data.

## Facts

- Endpoint: POST https://api.m2mcent.com/nlp-biometric-auditor-mcp-47/api/execute?utm_source=zero.xyz
- Price: $1.120011/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nlp-biometric-auditor-mcp-node-m2mcent-47-7c274b4e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zOckJA3DzqjHPzd2Z_d_5

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 nlp-biometric-auditor-mcp-node-m2mcent-47-7c274b4e -d '<json body>'
```

Example prompt: Can you run a biometric NLP audit on this audio file and tell me whether it passes?

## When to prefer this

Use this endpoint when you need a simple pass/fail biometric audit of an audio input and can accept a boolean response with no additional detail. Suitable for lightweight automated pipelines that only need a binary decision. Note the low crawl quality score and opaque response schema suggest limited reliability guarantees.

## Known failure modes

- Missing required 'audio' field returns validation error
- Invalid or malformed audio string may return unexpected false result
- Network or payment settlement failure via x402 protocol may result in no response
- Audio format incompatibility may cause processing failure
- Ambiguous boolean output provides no detail on why audit failed

## 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 field 'summary' indicating whether the audio passed the biometric audit check (true) or failed (false).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nlp-biometric-auditor-mcp-node-m2mcent-47-7c274b4e/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)