# Unauthorized Crawler Blocker MCP

> Unauthorized Crawler Blocker MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Processes data to detect and block unauthorized web crawlers accessing protected resources

## Facts

- Endpoint: POST https://api.m2mcent.com/unauthorized-crawler-blocker-mcp/api/process
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unauthorized-crawler-blocker-mcp-3c066d5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Fag0U8L8v2e-Op397Vn9l

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 unauthorized-crawler-blocker-mcp-3c066d5f -d '<json body>'
```

Example prompt: Can you check this incoming request data and tell me if it's from an unauthorized crawler that should be blocked?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call crawler detection and blocking decision for individual requests, particularly within agentic pipelines that need real-time access gating without standing up dedicated bot-management infrastructure.

## Known failure modes

- Missing or empty 'data' field returns a validation error
- Malformed input string may result in indeterminate classification
- Service unavailable if the backend MCP process is down
- Payment not processed (x402 flow failure) results in 401/402 response
- Ambiguous or minimal data may reduce detection confidence

## 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 verdict or assessment indicating whether the submitted data represents an unauthorized crawler, along with any relevant classification or threat signals to inform access control decisions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payload": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/unauthorized-crawler-blocker-mcp-3c066d5f/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)