# M2MCent NLP Smart Contract Monitor MCP

> M2MCent NLP Smart Contract Monitor MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.354022/call, status unknown (last checked 2026-10-15).

Executes a natural-language prompt against a monetized MCP node specialized for smart contract monitoring and NLP analysis, returning a boolean summary result.

## Facts

- Endpoint: POST https://api.m2mcent.com/nlp-smart-contract-monitor-mcp-896/api/execute?utm_source=zero.xyz
- Price: $0.354022/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-nlp-smart-contract-monitor-mcp-6142306b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y00gRmEV7ED4URA7_WsSE

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-smart-contract-monitor-mcp-6142306b -d '<json body>'
```

Example prompt: Check whether the smart contract at 0xABC123 has exceeded its daily transfer limit — give me a yes or no answer based on the latest on-chain data.

## When to prefer this

Choose this endpoint when you need a simple boolean answer to a natural-language smart contract monitoring query and want to avoid the token overhead of a full LLM reasoning loop. Best suited for automated condition checks, threshold monitoring, and yes/no contract state evaluations settled gaslessly via x402 on Base L2.

## Known failure modes

- Missing or empty prompt field returns a 400 validation error
- Ambiguous prompt that cannot be resolved against on-chain data may return an unexpected boolean
- Payment failure via x402 protocol results in a 402 Payment Required response
- Smart contract address not found or unsupported chain returns an error
- Network latency or node unavailability may cause timeouts

## 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 'summary' boolean field indicating whether the evaluated smart contract condition or NLP query resolved to true or false.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "prompt"
 ],
 "properties": {
  "prompt": {
   "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/m2mcent-nlp-smart-contract-monitor-mcp-6142306b/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)