Best open-source MCP servers for the web

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

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AI & LLM tooling46Chat UIs10Agents & frameworks19Local inference3RAG & vector DBs5Coding assistants6Evals & observability1Agent skills1MCP servers1Developer tools26Web frameworks9Databases & backends5Editors & IDEs1API tools1Self-hosted apps25Notes & docs9Automation7Data & analytics12Infra & DevOps6Security & identity7Communication8Media & photos15Design & creative16

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gpt-researcherassafelovic/gpt-researcher

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

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