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: 81

An MCP server built into the Netdata agent: metrics, logs, alerts and live process, service and container data for an AI assistant

80.7KRepository stars
Official

Local memory for agents: stores conversations and project files verbatim and retrieves them with semantic search over MCP

59.4KRepository stars

Microsoft's official MCP server for driving a browser with Playwright through the accessibility tree, no screenshots needed

37.7KRepository stars
Official

An MCP server and CLI from Sentry for building, running and testing Xcode iOS and macOS projects from an AI agent

6.4KRepository stars
Official

The official draw.io MCP server: an agent builds diagrams from XML or Mermaid and opens them in the draw.io editor

5.5KRepository stars
Official

Connects an agent to a running Next.js 16+ dev server: errors, routes, logs and docs for your installed version

822Repository stars

Yandex Wiki MCP server

MCP-сервер Яндекс Вики

Official

Yandex Wiki official MCP: an agent searches and reads knowledge base pages, builds summaries and creates new pages on behalf of the employee

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

72.4KRepository stars

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

45.4KRepository 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

31.9KRepository stars
Official

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

24.4KRepository stars

An MCP server that keeps large tool output out of the agent's context window and stores session memory in SQLite

24.2KRepository 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

7.1KRepository stars
Official

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

6.2KRepository stars

A local web engine for the agent over MCP: search, fetch, crawl, extract and research with no keys and no cloud

5.4KRepository stars

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

4.3KRepository stars

Long-term agent memory in local Markdown files with a link graph, semantic search and MCP access

4.1KRepository stars

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

3.3KRepository stars
Official

A local development environment with a built-in MCP server: the agent inspects services, sites, configs and logs and manages their lifecycle

3.2KRepository stars

A local MCP server for arXiv literature work: section-level paper reads, BibTeX from metadata, topic watches

3.2KRepository stars

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

2.7KRepository stars

An MCP server for searching and downloading academic papers from arXiv, PubMed, bioRxiv, Semantic Scholar and other open sources

2.7KRepository 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

2.7KRepository stars

Excalidraw MCP Server

Excalidraw MCP Server, CLI & Agent Skill

A live Excalidraw canvas for the agent: creates, edits and exports diagrams over MCP or CLI, sees its own work via screenshots and saves .excalidraw files into

2.5KRepository 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.