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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Found: 113

An MCP server that gives agents IDE powers: symbol and reference lookup, symbol-level edits and renames via LSP or JetBrains

High risk29.9KRepository stars

Local code graph for agents: an MCP server returns entry points, symbol links and change impact in one call

Medium risk72.3KRepository stars

An MCP server that builds a code graph of functions, classes, calls and routes and answers the agent's structural queries locally

Medium risk45.4KRepository stars

Local code structure graph: builds a repository map with tree-sitter and serves the assistant only the context a change actually touches over MCP

Medium risk31.8KRepository stars
Official

MCP tools and a CLI for a 3D building editor: the agent creates, inspects and edits architectural scenes

Medium risk24.4KRepository stars

Control the Unity Editor from an agent over MCP: scenes and objects, C# scripts, assets, tests, profiling and builds

High risk14.6KRepository 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

Medium risk7.1KRepository stars
Official

Fast semantic code search for agents: returns the exact snippets instead of reading whole files and spends far fewer tokens

Medium risk6.2KRepository stars

An MCP server that gives an agent search over a large Claude Code guide, official docs, releases and ready-made templates

Low risk6.1KRepository stars

MCP server for spec-driven development: requirements, design and tasks step by step, with a web dashboard and a VS Code extension

Medium risk4.3KRepository stars

A local codebase index for agents: hybrid search, dependency graphs and change impact analysis

Medium risk3.3KRepository stars

An MCP server that indexes code with tree-sitter and returns individual functions and classes to the agent instead of whole files

Medium risk2.7KRepository stars
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

Medium risk2.7KRepository stars

An MCP server that lets an agent control the Unreal Engine editor in words: actors, blueprints, node graphs, camera

Medium risk2.1KRepository stars

An MCP server that turns a large codebase into a semantic feature graph for precise navigation and meaning-based search

Medium risk2KRepository stars

MCP server that connects an AI agent to the Unity Editor: scene, objects, packages and project resources

High risk1.9KRepository stars

A code-intelligence engine for agents: builds a project graph and serves symbol lookup, call chains and blast radius, saving context

Medium risk1.8KRepository stars

Docs MCP Server

Grounded Docs MCP Server

A local MCP server that indexes docs from websites, GitHub, npm, PyPI and files and gives the agent version-aware search

Medium risk1.8KRepository stars

MCP Server for WinDbg

MCP Server for WinDbg Crash Analysis

An MCP server that hands the agent the Windows debuggers: crash dump analysis, remote and kernel debugging in natural language

Medium risk1.6KRepository stars

Cocos Creator MCP Server

Cocos Creator MCP Server Plugin

An MCP server as a Cocos Creator editor extension: the agent controls scenes, nodes, components, prefabs and project assets

Medium risk1.4KRepository stars

An MCP server that lets an agent read files, search code and run commands in a workspace

High risk1.2KRepository stars

mcpdoc

MCP LLMS-TXT Documentation Server

An MCP server from LangChain that serves docs from the llms.txt files you choose, with auditable tool calls

Medium risk1KRepository stars
Official

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

Medium risk938Repository stars

An MCP server for Unreal Engine: control assets, actors, the editor, sequencer and blueprints

High risk895Repository 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.