# M2MCent IoT ZK Proof Indexer MCP Node

> M2MCent IoT ZK Proof Indexer MCP Node is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.595566/call, status unknown (last checked 2026-10-10).

Executes an IoT zero-knowledge proof indexing operation on a given dataset, returning a boolean result

## Facts

- Endpoint: POST https://api.m2mcent.com/iot-zk-proof-indexer-mcp-334/api/execute?utm_source=zero.xyz
- Price: $0.595566/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-iot-zk-proof-indexer-mcp-node-56c99a8d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZPr5KAWUS1GhZ0xFyFx06

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-iot-zk-proof-indexer-mcp-node-56c99a8d -d '<json body>'
```

Example prompt: Run a ZK proof index check on this IoT dataset and tell me whether it passes or not.

## When to prefer this

Choose this endpoint when you need a simple true/false ZK proof validation result for an IoT dataset and are operating within the M2MCent MCP node ecosystem with x402 USDC micropayment support on Base L2.

## Known failure modes

- Missing or malformed 'dataset' field returns a validation error
- Empty dataset string may return false or an error
- Network timeout for large datasets
- Payment failure via x402 protocol blocks execution
- Invalid dataset format not recognized by the ZK indexer

## 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 indicating whether the dataset passed the ZK proof indexing validation (true = valid/passes, false = fails)

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/m2mcent-iot-zk-proof-indexer-mcp-node-56c99a8d/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)