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What is MCP?
MCP, or Model Context Protocol, is an open standard that lets AI apps connect to tools and data in a common way.
- Category Agents & tools
- Also called Model Context Protocol, MCP server
- Updated 20 Oct 2026
MCP, explained simply
Without a standard, every AI app needs its own custom link to every tool. MCP gives them one shared plug shape.
A tool shares what it can do through an MCP server. An AI app that speaks MCP can then use it.
Example: an MCP server for your notes lets a chatbot search them, with your permission.
On ITG Now, our free tool guides list MCP servers you can add to your AI apps, with install steps.
Related terms
Tool callingAI agentPluginAPIClaudeA2A
Where you'll see it on ITG Now
- GuideDBX: Free Database Client for 100+ Databases, With AI (2026)
- GuideOpenCut: Free CapCut Alternative, Open Source (2026 Guide)
- GuideArtemis: Google's Free AI Android Automation Tool
- GuideCodeGraph for Claude Code: Cut AI Coding Costs (2026)
- GuideMemPalace: Free AI Memory for Claude Code, Stored Locally
- GuideOpenSEO: Free Semrush Alternative, Open Source (2026)
Questions people ask about MCP
Is MCP free?
The standard is open. Individual servers and the AI apps that use them may be free or paid.
MCP vs API: what is the difference?
An API is one service's own way to connect. MCP is a common way for AI apps to talk to many tools.