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MCP is an open standard. It connects AI assistants to your databases and APIs. You stop writing custom code for every tool.
One MCP server works across Claude, ChatGPT, Cursor, and Windsurf. You build your tool once. It works everywhere. You spend less time on glue code.
The guide covers these topics:
- MCP structure
- Connecting assistants
- Tool discovery
- Versions and security
- Building a server from scratch
MCP uses a client-server protocol. It uses JSON-RPC. The assistant talks to the server to find tools and data. The LLM does not call your API directly.