# API Rate Limit Enforcer MCP

> API Rate Limit Enforcer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.18/call, status unknown (last checked 2026-10-16).

Enforces and manages API rate limiting policies by processing requests and validating them against configured rate limits.

## Facts

- Endpoint: POST https://api.m2mcent.com/api-rate-limit-enforcer-mcp/api/process?utm_source=zero.xyz
- Price: $0.18/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-rate-limit-enforcer-mcp-06f1ed68
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xQV8nt_NcDLHEciymuA8S

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 api-rate-limit-enforcer-mcp-06f1ed68 -d '<json body>'
```

Example prompt: Check this API request payload against our rate limiting rules and tell me whether it should be allowed through or throttled: 'user_id=abc123, endpoint=/search, timestamp=now'.

## When to prefer this

Choose this endpoint when you need a managed, pay-per-call rate limit enforcement service without maintaining your own rate limiting infrastructure. Best suited for agentic workflows where agents need to self-regulate API usage or validate request compliance before execution.

## Known failure modes

- Malformed or missing 'data' field returns a validation error
- Rate limit configuration not found for the given context results in ambiguous enforcement
- Timeout if the data payload is too large or malformed
- Invalid JSON in the data string causes a processing error
- No response if the upstream enforcement engine is unavailable

## 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 decision on whether the submitted data/request complies with configured rate limiting rules, including throttle status, whether the request is allowed or blocked, and any relevant quota or enforcement details.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-rate-limit-enforcer-mcp-06f1ed68/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)