Open-source mCP servers & SDKs

Chrome DevTools MCP

ChromeDevTools/chrome-devtools-mcp

Official MCP server giving coding agents Chrome DevTools: debugging, performance traces, network and console.

npx -y chrome-devtools-mcp@latest

Blender MCP

ahujasid/mcp-for-blender

Community MCP plugin to control Blender 3D from Claude or any LLM (not affiliated with Blender Foundation).

claude mcp add blender uvx mcp-for-blender

Serena

oraios/serena

MCP toolkit that gives coding agents IDE-like semantic code retrieval and editing via language servers.

uv tool install -p 3.13 serena-agent

FastMCP

PrefectHQ/fastmcp

The fast, Pythonic way to build MCP servers and clients.

uv add fastmcp

MCP Python SDK

modelcontextprotocol/python-sdk

Official Python SDK for building Model Context Protocol servers and clients.

uv add "mcp[cli]"

n8n-MCP

czlonkowski/n8n-mcp

MCP server that lets Claude, Cursor or Windsurf understand n8n nodes and build n8n workflows for you.

Install: Hosted at n8n-mcp.com; self-host via npx/Docker (docs/SELF_HOSTING.md).

Framelink Figma MCP

GLips/Figma-Context-MCP

MCP server that feeds Figma layout data to coding agents like Cursor for more accurate design-to-code.

npx -y figma-developer-mcp

MCP TypeScript SDK

modelcontextprotocol/typescript-sdk

Official TypeScript SDK for building Model Context Protocol servers and clients.

npm install @modelcontextprotocol/server

mcp-use

mcp-use/mcp-use

Full-stack framework (TS/Python) to build MCP servers and MCP Apps for ChatGPT/Claude, plus clients.

npx -y create-mcp-use-app@latest

Desktop Commander MCP

wonderwhy-er/DesktopCommanderMCP

MCP server giving Claude and other clients terminal control, file search and diff-based file editing.

claude mcp add --scope user desktop-commander -- npx -y @wonderwhy-er/desktop-commander@latest

mcp-go

mark3labs/mcp-go

Go implementation of the Model Context Protocol for building MCP servers and clients.

go get github.com/mark3labs/mcp-go

mcp-agent

lastmile-ai/mcp-agent

Framework to build agents on MCP using simple, composable workflow patterns.

uv add "mcp-agent"

GitMCP

idosal/git-mcp

Free remote MCP server that gives agents up-to-date docs/code for any GitHub repo to cut hallucinations.

npx mcp-remote https://gitmcp.io/{owner}/{repo}

MCP Atlassian

sooperset/mcp-atlassian

MCP server for Jira and Confluence (Cloud and Server/Data Center).

uvx mcp-atlassian

Excel MCP Server

haris-musa/excel-mcp-server

MCP server to create and edit Excel files (charts, pivots, formulas) without Excel installed.

claude mcp add excel --scope user -- uvx excel-mcp-server stdio --allow-dir /path/to/workbooks

MetaMCP

metatool-ai/metamcp

Self-hosted MCP aggregator/gateway that groups many MCP servers behind one endpoint with middleware.

docker compose up -d

MCPJam Inspector

MCPJam/inspector

Local testing and debugging app for MCP servers and ChatGPT/MCP apps, with a built-in LLM playground.

docker run -p 127.0.0.1:6274:6274 mcpjam/mcp-inspector