# M2MCent Web3 Biometric Indexer MCP Node

> M2MCent Web3 Biometric Indexer MCP Node is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.548116/call, status unknown (last checked 2026-10-12).

Executes a query against a monetized MCP node in the M2MCent network, returning a boolean result via gasless USDC settlement on Base L2.

## Facts

- Endpoint: POST https://api.m2mcent.com/web3-biometric-indexer-mcp-635/api/execute?utm_source=zero.xyz
- Price: $0.548116/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-web3-biometric-indexer-mcp-node-da4e5f70
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ItJnSQ1kbe95Ri8CCiePa

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-web3-biometric-indexer-mcp-node-da4e5f70 -d '<json body>'
```

Example prompt: Submit this data string to the M2MCent biometric indexer MCP node and tell me whether it returns true or false.

## When to prefer this

Use this endpoint when you need to execute a specific query or validation against the M2MCent monetized MCP node network and require a simple boolean outcome, especially in automated workflows where gasless USDC micropayment settlement on Base L2 is acceptable.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 settlement error
- Invalid input: missing or malformed 'data' string in request body
- Node unavailable: the specific MCP node subdomain is offline or unreachable
- Timeout: node processing exceeds response window
- False result: data does not match index criteria, returns {result: false} without 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

A JSON object with a single boolean 'result' field indicating whether the submitted data passed the node's check or lookup operation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "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-web3-biometric-indexer-mcp-node-da4e5f70/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)