# M2MCent NLP Biometric Optimizer MCP

> M2MCent NLP Biometric Optimizer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.240633/call, status unknown (last checked 2026-10-10).

Accepts a natural language prompt and returns a boolean score via an NLP biometric optimization endpoint on the M2MCent monetized MCP network.

## Facts

- Endpoint: POST https://api.m2mcent.com/nlp-biometric-optimizer-mcp-364/api/execute?utm_source=zero.xyz
- Price: $0.240633/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-nlp-biometric-optimizer-mcp-bf7402ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jKdrXGtKEu6dYof6yoJ3D

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-biometric-optimizer-mcp-bf7402ad -d '<json body>'
```

Example prompt: Run this text through the NLP biometric optimizer and tell me if it passes: 'The user confirmed identity via voice pattern and typed authentication code 7841.'

## When to prefer this

Choose this endpoint when you need a fast, monetized boolean NLP biometric optimization score for a single text prompt and are operating within the x402 payment protocol on Base L2. It is suited for lightweight pass/fail evaluations rather than detailed multi-field NLP analysis.

## Known failure modes

- Missing required 'prompt' field returns validation error
- Empty string prompt may return unexpected boolean result
- Payment failure via x402 protocol blocks execution
- Malformed JSON body causes 400-level error
- Network timeout if MCP node is temporarily unavailable

## 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

A JSON object containing a single boolean field 'score' — true or false — indicating the outcome of the NLP biometric optimization computation applied to the submitted prompt.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/m2mcent-nlp-biometric-optimizer-mcp-bf7402ad/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)