Hidden Features

MCP

Connect Claude to tools and data with the Model Context Protocol.

Knowledge cards
Workflow
Build a Custom MCP Server for Your Own Stack
Writing your own MCP server to expose an internal system — a private API, an in-house database, a bespoke workflow — to Claude as a small set of well-described tools, when no off-the-shelf server covers what you need. It's how you connect Claude to the parts of your stack that are unique to you.
L4 · Multi-AI systems
Concept
Connect Claude to Your Tools With MCP
Using the Model Context Protocol (MCP) to connect Claude to real tools and data — files, databases, APIs, internal systems — through a standard interface, so it can act on your actual context instead of only what you paste.
L4 · Multi-AI systems
Best practice
Scope MCP Access to Least Privilege
A security discipline for MCP: grant each connected server the narrowest access that its job actually requires — read-only when you won't be writing, scoped to specific directories or datasets, no destructive capabilities it doesn't need. The connection's permissions should match the task, not the maximum the server can offer.
L4 · Multi-AI systems
Best practice
Start With One MCP Server That Earns Its Place
An adoption strategy for the Model Context Protocol: instead of connecting every available server at once, wire up a single MCP server that removes a real, repeated pain in your workflow, prove it earns its keep, and only then add more. Start where the payoff is obvious.
L4 · Multi-AI systems
Claude and MCP

A standard way to connect Claude to your world

The Model Context Protocol is an open standard for connecting Claude to external tools and data — files, databases, APIs, internal systems — through one consistent interface. Instead of pasting data into the chat, you give Claude a live connection to the source, so it can read and act on your real information. That is the step from a clever chat window to something wired into your actual stack. Because MCP is a standard, a tool built once can be used across compatible clients rather than reinvented each time.

Ground Claude in real data

MCP matters because it lets Claude work from ground truth rather than a snapshot you copied in. Connect it to the systems that hold your data, and its answers reflect the current state, not a stale paste. This is the foundation for serious workflows — support tools, internal assistants, data pipelines — where accuracy depends on Claude seeing the real thing. As with any tool use, the craft is in exposing clean, well-described interfaces so Claude uses them correctly and predictably.

Frequently asked
What is MCP (Model Context Protocol)?

An open standard for connecting Claude to external tools and data — files, databases, APIs, internal systems — through one consistent interface, so it can read and act on your real information.

Why does MCP matter?

It lets Claude work from ground truth rather than pasted snapshots, so answers reflect current data. It is the foundation for serious workflows where accuracy depends on live access.

Is MCP reusable across tools?

Yes — because it is a standard, a tool built once can be used across compatible clients rather than rebuilt each time, which is part of its appeal.