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Open-Source MCP servers

Production-ready MCP servers that extend AI capabilities through file access, database connections, API integrations, and other contextual services.

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9,443 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • System Information MCP Server

    dknell
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    Provides real-time system metrics and information through a Model Context Protocol interface, enabling access to CPU usage, memory statistics, disk information, network status, and running processes.
    Last updated -
    7
    2
    • Apple
    • Linux

  • Personal MCP Server

    evangstav
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    quality
    A Model Context Protocol server for tracking personal health and well-being, offering tools for workout logging, nutrition management, and daily journaling with AI-assisted analysis integration.
    Last updated -
    8

  • System Information MCP Server

    batteryshark
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    quality
    Provides comprehensive system diagnostics and hardware analysis through 10 specialized tools for troubleshooting and environment monitoring. Offers targeted information gathering for CPU, memory, network, storage, processes, and security analysis across Windows, macOS, and Linux platforms.
    Last updated -
    10
    MIT License
    • Apple
    • Linux

  • A Share MCP

    24mlight
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    security
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    license
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    quality
    A Model Context Protocol server providing tools for querying A-share stock market data, including historical prices, financial reports, market indices, and macroeconomic indicators.
    Last updated -
    27
    424
    MIT License

  • Knowledge MCP Server

    sven-borkert
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    quality
    Provides centralized knowledge management for projects, allowing users to store, search, and maintain project-specific knowledge that persists across sessions.
    Last updated -
    27
    2
    1
    MIT License
    • Apple

  • Windows System MCP

    guangxiangdebizi
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    A comprehensive Model Context Protocol server that enables AI assistants to interact with and manage Windows systems, providing capabilities for file system operations, process management, system information retrieval, registry operations, service management, network diagnostics, and performance monitoring.
    Last updated -
    7
    7

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  • Two Truths and a Twist

    ErgodicLabs
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    security
    A
    license
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    quality
    An MCP-based trivia game server where AI creates rounds with two true statements and one false 'twist' about various topics, letting players guess which statement is false.
    Last updated -
    5
    MIT License
    • Apple
    • Linux

  • mcp-knowledge-graph

    shaneholloman
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    security
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    quality
    An improved implementation of persistent memory using a local knowledge graph with a customizable --memory-path. This lets Claude remember information about the user across chats.
    Last updated -
    9
    1,113
    652
    MIT License
    • Apple

  • Knowledge Base MCP Server

    Leon4s4
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    A mem0-like memory system for GitHub Copilot that provides persistent knowledge storage and retrieval capabilities using local ChromaDB.
    Last updated -
    MIT License

  • YouTube Knowledge MCP

    efikuta
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    quality
    Transforms YouTube into a queryable knowledge source with search, video details, transcript analysis, and AI-powered tools for summaries, learning paths, and knowledge graphs. Features quota-aware API access with caching and optional OpenAI/Anthropic integration for advanced content analysis.
    Last updated -
    1

  • Personal Assistant MCP Server

    lemannrus
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    security
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    A unified interface for managing digital life through integrations with Google Calendar, Obsidian Vault, Trello, and web page parsing capabilities.
    Last updated -
    4

  • DevEnvInfoServer

    carterlasalle
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    security
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    An MCP server that provides detailed information about your development environment to the Cursor code editor, enabling more context-aware assistance.
    Last updated -
    5
    MIT License
    • Linux
    • Apple

  • Knowledge Graph Memory Server

    itseasy21
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    security
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    An implementation of persistent memory for Claude using a local knowledge graph, allowing the AI to remember information about users across conversations with customizable storage location.
    Last updated -
    11
    228
    54
    JavaScript
    MIT License
    • Apple

  • A-Share MCP Server

    24mlight
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    security
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    license
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    quality
    A Model Context Protocol server focused on China's A-share stock market that provides data on stocks, financials, market indices, and macroeconomic indicators.
    Last updated -
    27
    424
    MIT License

  • Neo4j Knowledge Graph

    mjftw
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    security
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    quality
    Enables storage and retrieval of knowledge in a graph database format, allowing users to create, update, search, and delete entities and relationships in a Neo4j-powered knowledge graph through natural language.
    Last updated -
    3
    • Linux

  • Rememberizer MCP Server for Common Knowledge

    skydeckai
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    security
    A
    license
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    quality
    Enables accessing and managing personal/team internal knowledge repository with tools for semantic search, smart search, document listing, and saving information for future recall.
    Last updated -
    Apache 2.0

  • Shared Knowledge MCP Server

    j5ik2o
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    security
    F
    license
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    quality
    This server enables AI assistants (CLINE, Cursor, Windsurf, Claude Desktop) to share a common knowledge base through Retrieval Augmented Generation (RAG), providing consistent information access across multiple tools.
    Last updated -
    4
    • Apple

  • Knowledge Graph Memory Server

    yodakeisuke
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    quality
    This MCP server provides persistent memory integration for chat applications by utilizing a local knowledge graph to remember user information across interactions.
    Last updated -
    9
    71,166
    5

  • MCP File System

    Wayazi
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    A server implementing the Model Context Protocol that provides filesystem operations (read/write, directory management, file movement) through a standardized interface with security controls for allowed directories.
    Last updated -
    9
    3
    MIT License

  • System Resource Monitor MCP Server

    abhinav7895
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    Provides Claude with real-time system monitoring capabilities, including CPU, memory, disk, network, battery, and internet speed metrics.
    Last updated -
    1
    MIT License
    • Apple

  • Dify Knowledge MCP Server

    liiklin
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    A Model Context Protocol server that enables AI assistants like Cursor to directly query and retrieve information from Dify knowledge bases through natural language.
    Last updated -
    2
    2
    1
    • Linux
    • Apple

  • Knowledge MCP Service

    vietnama10
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    security
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    quality
    Enables AI-powered document analysis and querying for project documentation using vector embeddings stored in Redis. Supports document upload, context-aware Q\&A, automatic test case generation, and requirements traceability through OpenAI integration.
    Last updated -
    637

  • Notion Knowledge MCP Server

    YuHuanHsu
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    security
    F
    license
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    quality
    A Cloudflare Workers-based service that enables intelligent searching, automatic code snippet recording, and statistical analysis of programming knowledge stored in Notion databases.
    Last updated -

  • MCP Memory System

    aaqqjj
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    security
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    Enables AI assistants to maintain persistent conversations and context between sessions through automated saving and global installation across projects. Provides zero-configuration memory persistence with automatic conversation history preservation.
    Last updated -
    MIT License
    • Apple

  • Knowledge Base MCP Server

    jeanibarz
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    security
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    Provides tools for listing and retrieving content from different knowledge bases using semantic search capabilities.
    Last updated -
    1
    25
    The Unlicense
    • Linux
    • Apple

  • file-system-mcp-server

    calebmwelsh
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    security
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    A comprehensive MCP (Model Context Protocol) server for file system operations, providing Claude and other AI assistants with access to local files and directories.
    Last updated -
    1
    MIT License
    • Apple
    • Linux

  • Code Knowledge MCP Server

    davidvc
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    quality
    Provides a project memory bank and RAG context provider for enhanced code understanding and management through vector embeddings, integrated with RooCode and Cline.
    Last updated -
    18
    • Apple

  • MCP Design System Extractor

    freema
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    security
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    license
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    quality
    Server that enables AI assistants to interact with Storybook design systems. Extract component HTML, analyze styles, and help with design system adoption and refactoring.
    Last updated -
    8
    8
    24
    MIT License

  • Rememberizer MCP Server for Common Knowledge

    skydeckai
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    security
    A
    license
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    quality
    Provides access to personal/team knowledge repositories with tools to search, retrieve, and save information from various sources including Slack, Gmail, and document storage platforms.
    Last updated -
    Apache 2.0

  • Elasticsearch Knowledge Graph for MCP

    j3k0
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    security
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    license
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    quality
    Provides a scalable knowledge graph implementation for Model Context Protocol using Elasticsearch, enabling AI models to store and query information with advanced search capabilities, memory-like behavior, and multi-zone architecture.
    Last updated -
    20
    16

  • OpenAI SDK Knowledge MCP Server

    seratch
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    security
    A
    license
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    quality
    An MCP server that provides deep knowledge about OpenAI APIs and SDKs, enabling users to query technical information through various MCP clients including ChatGPT Deep Research, Cursor, and OpenAI Responses API.
    Last updated -
    10
    MIT License