​
Welcome to LeanMCP

LeanMCP is the fastest way to build and deploy MCP Servers.

​
What are MCPs?

MCP is a standard protocol for AI agents to understand your SaaS applications. If you have a SaaS application, you must have an MCP for it. Human beings use buttons, forms, and visual interfaces to interact with your SaaS application. LLMs on the other hand are better AND faster at using MCPs. MCPs spell out loud to the LLM on how they should use a tool - explicitly by providing an updated schema of the tool. Think of MCPs as UI for AI agents. Every tool call is like a click. MCPs help AI understand your tools. They show AI agents:
  • What each tool does
  • How to use each tool
  • When to use each tool

​
Why MCPs Matter

MCPs are natural extension of tool calls. Prior to MCPs - developers were were connecting AI agents to tools using APIs. AI agents are confused without MCPs. Imagine a webpage with 1000 buttons scattered everywhere. That’s how AI feels when it sees 50-100 API tools without proper MCPs. Good MCPs make AI agents work better.

​
Building Good MCPs is an Art

You want to:
  • Reduce wrong tool calls - Less confusion for AI
  • Make tools easy to find - Better performance
  • Keep users happy - They’ll use your tools more

​
Perfect for Testing AI Workflows

MCPs are great for trying new ideas:
  1. Old way: Code everything → Test → Hope it works
  2. New way: Build MCP → Test with AI → See if it works
Most AI providers (like Anthropic and OpenAI) support MCPs. Going from test to production is easy.

​
Why Choose LeanMCP?

LeanMCP helps you:
  • Build MCPs quickly
  • Test them with real AI
  • Deploy them fast
Ready to start building? Let’s go!