MCP Servers
72,220 MCP servers for AI apps. Filter by category, badge and popularity.
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Read-only MCP server for AI agents to explore an 8-domain collaborative engineering knowledge base. Covers the design of Arcology One—a speculative mile-high city for 10 million people. 32 entries spanning structural engineering, energy systems, environmental systems, mechanics.
300+ calculators for AI agents via the Model Context Protocol. MCPCalc is a hosted MCP server that gives AI agents (Claude, ChatGPT, and others) access to a comprehensive library of calculators spanning finance, math, health, construction, engineering, food, automotive, and more
MCPilot is an AI chatbot that integrates real-time tools like DuckDuckGo, Airbnb, and weather APIs. Built with MCP Servers, Gradio, and GROQ, it provides context-aware responses and smooth interactions. Currently in beta, MCPilot aims to assist with real-time queries and tasks
Lint and score your MCP server's tool definitions before you publish — name/schema validity, description quality, context-token weight, and destructive-tool safety. Gives a 0–100 score and a CI gate. Free CLI, MIT engine. Catches structure and hygiene, not intent.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.
