Best open-source MCP servers

Open-source Model Context Protocol servers and SDKs that connect AI assistants to tools, data and APIs.

Filters · 1 MCP servers

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Personal 35Enterprise 23

Purpose

AI & LLM tooling 340Chat UIs 22Agents & frameworks 105Local inference 24RAG & vector DBs 49Coding assistants 72Evals & observability 14Agent skills 44MCP servers 36Developer tools 399Web frameworks 123Databases & backends 52Editors & IDEs 21API tools 22Git hosting 5Self-hosted apps 134Notes & docs 45Automation 65Data & analytics 59Infra & DevOps 90Security & identity 71Communication 39Media & photos 97Design & creative 87

Runs on

Web 8Docker / self-host 12Desktop 2Mobile 0CLI 23Library / SDK 9Extension / plugin 4

License

Permissive 28Copyleft 3Source-available 0Other / custom 5

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Has live demo 6Commit in last 90 days 36

36 projects · showing 1–20

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M

MemPalaceMemPalace/mempalace

Open-source AI memory systemPersonalAI & LLM toolingMCP serversLibrary / SDK★ 59kMITcommit 2 days ago

87worth

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P

Playwright MCPmicrosoft/playwright-mcp

Browser automation for agents through PlaywrightPersonalEnterpriseMCP serversCLI★ 38kApache-2.0commit 6 days ago

85worth

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g

gpt-researcherassafelovic/gpt-researcher

Autonomous deep research agent for web and local documentsPersonalAgent skillsAgents & frameworksMCP serversRAG & vector DBsWeb★ 30kApache-2.0commit last week

85worth

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C

Chrome DevTools MCPChromeDevTools/chrome-devtools-mcp

Chrome DevTools for coding agentsPersonalEnterpriseMCP serversCLI★ 53kApache-2.0commit 3 days ago

83worth

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G

GitHub MCP Servergithub/github-mcp-server

GitHub's official MCP serverPersonalEnterpriseMCP serversDocker / self-hostCLI★ 33kMITcommit 2 days ago

83worth

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C

Context7upstash/context7

Up-to-date library docs for coding agentsPersonalMCP serversCLI★ 63kMITcommit 3 days ago

82worth

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C

Codebase Memory MCPDeusData/codebase-memory-mcp

Code intelligence MCP server with a knowledge graphPersonalEnterpriseMCP serversCoding assistantsCLI★ 46kMITcommit 3 days ago

82worth

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U

Unity MCPCoplayDev/unity-mcp

Connect AI assistants to UnityPersonalMCP serversExtension / plugin★ 15kMITcommit 23 hours ago

82worth

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M

MCP Reference Serversmodelcontextprotocol/servers

Reference Model Context Protocol serversPersonalEnterpriseMCP serversDocker / self-hostCLI★ 91kcommit 2 weeks ago

81worth

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C

Code Review Graphtirth8205/code-review-graph

Local code graph for AI coding toolsPersonalMCP serversCoding assistantsCLI★ 32kMITcommit 2 weeks ago

81worth

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F

FastMCPPrefectHQ/fastmcp

Fast, Pythonic way to build MCP serversPersonalEnterpriseMCP serversDeveloper toolsLibrary / SDK★ 28kApache-2.0commit yesterday

81worth

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M

MCP Python SDKmodelcontextprotocol/python-sdk

Official Python SDK for MCP servers and clientsPersonalEnterpriseMCP serversLibrary / SDK★ 24kMITcommit 2 days ago

81worth

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C

ComposioComposioHQ/composio

Toolkits and auth for AI agentsPersonalEnterpriseAgents & frameworksMCP serversLibrary / SDK★ 30kMITcommit 3 days ago

80worth

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A

Activepiecesactivepieces/activepieces

AI workflow automation with MCPPersonalEnterpriseMCP serversAutomationDocker / self-host★ 25kcommit yesterday

80worth

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Q

QuantDingerOpenByteInc/QuantDinger

Self-hosted AI trading platform and strategy execution enginePersonalEnterpriseMCP serversSelf-hosted appsAutomationWeb★ 12kApache-2.0commit 3 days agolive demo

80worth

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n

nginx-ui0xJacky/nginx-ui

Web-based management interface for NginxPersonalEnterpriseMCP serversInfra & DevOpsWebDocker / self-host★ 12kAGPL-3.0commit 2 days agolive demo

80worth

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C

CodeGraphcolbymchenry/codegraph

Pre-indexed code graph for coding agentsPersonalMCP serversCoding assistantsCLI★ 73kMITcommit 2 days ago

79worth

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a

ai-engineering-from-scratchrohitg00/ai-engineering-from-scratch

Comprehensive open-source AI engineering curriculum and hands-on labsPersonalAI & LLM toolingMCP serversDeveloper toolsWebCLI★ 63kMITcommit 3 days agolive demo

79worth

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A

Agent ReachPanniantong/Agent-Reach

Let AI agents read and search social platforms and the webPersonalAgents & frameworksMCP serversCLI★ 90kMITcommit 3 weeks ago

76worth

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S

Serenaoraios/serena

Semantic coding toolkit for agentsPersonalEnterpriseMCP serversCoding assistantsCLI★ 30kcommit 4 days ago

76worth

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Runs on

Web · 8Docker / self-host · 12Desktop · 2CLI · 23Library / SDK · 9Extension / plugin · 4

For

Personal · 35Enterprise · 23