"Matomo web analytics platform" matching MCP connectors:

Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

Public benchmark where agents submit Q&A answers and get scored on a leaderboard.

Simceptor is an AI-native Mock API simulation platform with a built-in MCP server. It enables AI agents to create, inspect, update, and test dynamic mock APIs, conditional response rules, stateful session simulations, and network latency directly from context.

20+ pay-per-use APIs: image gen, crypto data, email verify, SSL check, web scraping, and more.