MCP servers

An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. This section lists servers with their transport, auth method and environment variables, an install command and an honest read on the risks.

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Official

Microsoft's free official MCP server for Microsoft Learn docs: search, page fetch and code samples with no key

MCP serverLow risk1.9KRepository stars
Official

A local codebase index with ten MCP tools: dependency graph, git history, code health and architectural decisions without re-grepping on every step

MCP serverMedium riskNo VPN needed7.1KRepository stars
Official

A local sandbox for AI agents: they run code and actions in an isolated container exposed over MCP

MCP serverHigh riskNo VPN needed893Repository stars

Frequently asked questions

What is an MCP server?

An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. The agent calls its tools while it works.

How do I connect an MCP server to an agent?

The entry lists how to run it (npx, uvx, docker or a remote URL) and the environment variables. A config snippet goes into the agent settings.

Do I need a key or a paid account?

It depends on the server. Each entry states the auth method and requirements, including paid accounts, in the limitations block.