# AI Safety Biometric Generator MCP — Audio Liveness/Spoofing Detection

> AI Safety Biometric Generator MCP — Audio Liveness/Spoofing Detection is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.210318/call, status unknown (last checked 2026-10-10).

Analyzes an audio input and returns a boolean prediction indicating whether it passes AI safety biometric verification (e.g., liveness or anti-spoofing detection).

## Facts

- Endpoint: POST https://api.m2mcent.com/ai-safety-biometric-generator-mcp-252/api/execute?utm_source=zero.xyz
- Price: $0.210318/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ai-safety-biometric-generator-mcp-audio-liveness-spoofing-detection-f4937186
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tnXSYunF3sbIIm3AGDEPQ

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 ai-safety-biometric-generator-mcp-audio-liveness-spoofing-detection-f4937186 -d '<json body>'
```

Example prompt: Check this audio sample for biometric liveness — run it through the AI safety biometric detector and tell me whether it passes or fails the authenticity check.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call boolean verdict on whether an audio sample is biometrically authentic — particularly useful in fraud detection pipelines, voice-gated access control, or content moderation workflows where a simple pass/fail signal is sufficient and cost per call matters. Prefer alternatives if you need detailed confidence scores, multi-class labels, or explanations beyond a binary result.

## Known failure modes

- Missing 'audio' field in request body — returns validation error
- Audio string malformed or unrecognized encoding — may return false prediction or error
- Payment not settled via x402 — HTTP 402 response blocking execution
- Ambiguous audio quality too low for confident classification — boolean prediction may be unreliable
- Network latency or node unavailability on m2mcent.com infrastructure

## 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 'prediction' — true if the audio passes the AI safety biometric check (i.e., is assessed as a genuine/live human voice), false if it fails (detected as spoofed, synthetic, or otherwise inauthentic).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ai-safety-biometric-generator-mcp-audio-liveness-spoofing-detection-f4937186/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)