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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:

  • mcp-knowledge-graph

    shaneholloman
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    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 Graph Memory Server

    itseasy21
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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

  • Neo4j Knowledge Graph

    mjftw
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    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

  • YouTube Knowledge MCP

    efikuta
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    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

  • Knowledge Graph Builder

    rebots-online
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    Transforms text or web content into structured knowledge graphs using local AI models with MCP integration for persistent storage in Neo4j and Qdrant.
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    3

  • Knowledge Graph Memory Server

    modelcontextprotocol
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    A basic implementation of persistent memory using a local knowledge graph. This lets Claude remember information about the user across chats.
    Last updated -
    9
    71,166
    68,206
    MIT License
    • Apple
    • Linux

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  • PolyNeural.ai Knowledge Graph MCP Bundleofficial

    PolyNeural-ai
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    security
    F
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    Provides AI agents with persistent memory and knowledge management through a comprehensive knowledge graph platform. Enables storing, searching, and managing entities, relationships, and observations with advanced features like trending analysis and smart ranking.
    Last updated -
    1

  • Adaptive Graph of Thoughts MCP Server

    SaptaDey
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    A scientific reasoning framework that leverages graph structures and the Model Context Protocol (MCP) to process complex scientific queries through an Advanced Scientific Reasoning Graph-of-Thoughts (ASR-GoT) approach.
    Last updated -
    19
    MIT License

  • Knowledge Graph Memory Server

    yodakeisuke
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    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

  • Notion Knowledge MCP Server

    YuHuanHsu
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    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 -

  • Knowledge MCP Server

    sven-borkert
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    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

  • OpenAI SDK Knowledge MCP Server

    seratch
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    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

  • Knowledge Graph Memory Server

    bneil
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    Enhances the MCP memory server by implementing PouchDB for robust document storage and enabling the creation and management of a knowledge graph that captures interactions via language models.
    Last updated -
    4
    MIT License
    • Apple

  • Student MCP Server

    tejpalvirk
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    Provides tools for managing student knowledge graphs, enabling structured representation of courses, assignments, exams, concepts, and study resources.
    Last updated -
    6
    • Apple
    • Linux

  • Project MCP Server

    tejpalvirk
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    Provides tools for managing project knowledge graphs, enabling structured representation of projects, tasks, milestones, resources, and team members.
    Last updated -
    6
    9
    • Apple
    • Linux

  • Knowledge Base MCP Server

    jeanibarz
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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

  • MCP Neo4j Knowledge Graph Memory Server

    JovanHsu
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    Enhanced knowledge graph memory server for AI assistants that uses Neo4j as the backend storage engine, enabling powerful graph queries and efficient storage of user interaction information with full MCP protocol compatibility.
    Last updated -
    16
    MIT License

  • Mnemosyne MCP

    MumuTW
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    An active, stateful software knowledge graph engine that serves as an 'all-knowing development partner' for AI agents and human developers by modeling software projects into queryable knowledge graphs.
    Last updated -

  • 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

  • Logseq MCP Server

    dailydaniel
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    A server that enables LLMs to programmatically interact with Logseq knowledge graphs, allowing creation and management of pages and blocks.
    Last updated -
    10
    24
    MIT License

  • Qualitative Researcher MCP Server

    tejpalvirk
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    Provides tools for managing qualitative research knowledge graphs, enabling structured representation of research projects, participants, interviews, observations, codes, themes, and findings.
    Last updated -
    6
    6
    • Apple
    • Linux

  • Project Synapse

    angrysky56
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    An MCP server that transforms text into knowledge graphs and autonomously generates insights by combining Montague Grammar with Zettelkasten methodology.
    Last updated -
    5
    MIT License

  • 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

  • Chain of Thought MCP Server

    beverm2391
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    An MCP server that uses Groq's API to expose raw chain-of-thought tokens from Qwen's qwq model, enabling LLMs to think step-by-step before responding.
    Last updated -
    11

  • You Need A Budget (YNAB) MCP

    Jtewen
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    An MCP to give AI agents extensive knowledge of your personal finances and control of your budgeting.
    Last updated -
    14
    3
    MIT License
    • Apple
    • Linux

  • Quantitative Researcher MCP Server

    tejpalvirk
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    Provides tools for managing quantitative research knowledge graphs, enabling structured representation of research projects, datasets, variables, hypotheses, statistical tests, models, and results.
    Last updated -
    6
    8
    • Apple
    • Linux

  • MCP Memory Server - HTTP Streaming

    songlairui
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    Enables creation and management of knowledge graphs with entities, relationships, and observations through HTTP streaming. Supports persistent storage, search functionality, and CRUD operations for building and querying interconnected knowledge bases.
    Last updated -
    1

  • Shared Knowledge MCP Server

    j5ik2o
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    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

  • On-Demand Scanning API MCP Server

    ag2-mcp-servers
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    security
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    An MCP Server that enables users to interact with Google's On-Demand Scanning API (v1beta1) through natural language, likely providing capabilities for vulnerability scanning and security analysis of containers and artifacts.
    Last updated -

  • MCP Chat Analysis Server

    rebots-online
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    Facilitates semantic analysis of chat conversations through vector embeddings and knowledge graphs, offering tools for semantic search, concept extraction, and conversation pattern analysis.
    Last updated -
    11
    MIT License