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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 only205Works without a VPN883Russian stack only

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CategoryDevelopment
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AgentClaude Desktop
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Found: 9
DevelopmentClaude DesktopOfficial only
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Found: 9
Most popularNewestBy name
DevelopmentClaude DesktopOfficial only

Reference MCP servers

Model Context Protocol servers

Official

Official reference MCP servers: Filesystem, Fetch, Git, Memory, Sequential Thinking, Time and Everything

MCP serverMedium risk90.6K
Official

A semantic code search MCP server: indexes the project into a vector database and gives the agent only relevant snippets

MCP serverMedium riskNeeds a VPN12.6K
Official

An MCP server for the Godot engine: connects Claude Code, Claude Desktop and Codex to a live editor to build scenes, scripts and materials

MCP serverMedium riskNo VPN needed2.7K
Official

A Game Boy emulator with a debugger and a built-in MCP server: the agent controls execution, reads memory and inspects hardware state

MCP serverMedium riskNo VPN needed1.2K
Official

Ref's MCP server: documentation search for APIs and libraries that hands the agent only the relevant parts of pages

MCP serverMedium risk1.2K
Official

An MCP server and CLI for code research: search and understand your project and all of GitHub with fewer tokens

MCP serverMedium risk945
Official

An open macOS app for code context engineering: an MCP server and agent orchestrator that helps agents understand a project before editing

MCP serverMedium riskNo VPN needed938

Lineai MCP Server

lineai-mcp-server

Official

MCP server for the Lineai platform (formerly CodeLogic): impact analysis of code and database changes from a dependency graph

MCP serverMedium risk38

Bitrix24 REST API documentation MCP

Bitrix MCP REST API Documentation

Official

Bitrix24's official remote MCP server: the agent looks up REST API methods, parameters and events in current documentation

MCP serverLow riskRussian stackNo VPN needed7

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.