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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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6,854 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • Elasticsearch Knowledge Graph for MCP

    j3k0
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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 -
    17
    6
    TypeScript

  • Knowledge Base MCP Server

    jeanibarz
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    license
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    quality
    Provides tools for listing and retrieving content from different knowledge bases using semantic search capabilities.
    Last updated -
    2
    18
    TypeScript
    The Unlicense
    • Linux
    • Apple

  • Knowledge Graph Memory Server

    yodakeisuke
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    security
    F
    license
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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
    25,063
    1
    JavaScript

  • mcp-knowledge-graph

    shaneholloman
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    license
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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
    156
    247
    JavaScript
    MIT License
    • Apple

  • MCP DuckDB Knowledge Graph Memory Server

    IzumiSy
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    security
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    license
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    quality
    A memory server for Claude that stores and retrieves knowledge graph data in DuckDB, enhancing performance and query capabilities for conversations with persistent user information.
    Last updated -
    8
    24
    42
    TypeScript
    MIT License
    • Apple

  • MCP Sequential Thinking Tools

    xinzhongyouhai
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    license
    A
    quality
    Guides problem-solving by breaking down complex problems into steps and recommending appropriate MCP tools for each stage, with confidence scores and rationales for tool suggestions.
    Last updated -
    1
    766
    MIT License

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  • Knowledge Graph Memory Server

    modelcontextprotocol
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    security
    A
    license
    -
    quality
    A basic implementation of persistent memory using a local knowledge graph. This lets Claude remember information about the user across chats.
    Last updated -
    9
    25,063
    59,683
    TypeScript
    MIT License
    • Apple
    • Linux

  • SEO Review Tools - MCP serverofficial

    SEO-Review-Tools
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    security
    F
    license
    A
    quality
    Get access to real-time SEO data, including: keyword insights, backlink data, traffic estimates and more. Allow AI tools and Large Language Models (LLMs) to tap into the real-time SEO Review Tools API with natural language commands.
    Last updated -
    8
    52
    JavaScript

  • Knowledge Graph Memory Server

    T1nker-1220
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    security
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    license
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    quality
    Enhances user interaction through a persistent memory system that remembers information across chats and learns from past errors by utilizing a local knowledge graph and lesson management.
    Last updated -
    13
    25,063
    34
    JavaScript
    MIT License

  • mcp-sequentialthinking-tools

    spences10
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    license
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    quality
    An adaptation of the MCP Sequential Thinking Server designed to guide tool usage in problem-solving. This server helps break down complex problems into manageable steps and provides recommendations for which MCP tools would be most effective at each stage.
    Last updated -
    1
    766
    268
    TypeScript
    MIT License

  • Higress AI-Search MCP Server

    cr7258
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    security
    A
    license
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    quality
    A Model Context Protocol server that enables AI models to perform real-time internet and knowledge searches through Higress, enhancing model responses with up-to-date information from Google, Bing, Arxiv, and internal knowledge bases.
    Last updated -
    1
    5
    Python
    Apache 2.0

  • Crunchbase MCP Server

    Cyreslab-AI
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    security
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    license
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    quality
    A Model Context Protocol (MCP) server that provides access to Crunchbase data for AI assistants. This server allows AI assistants to search for companies, get company details, funding information, acquisitions, and people data from Crunchbase.
    Last updated -
    5
    3
    JavaScript
    MIT License

  • Hunter MCP Serverofficial

    hunter-io
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    security
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    license
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    quality
    Provides integration between Hunter API and LLM providers supporting the MCP protocol, allowing natural language interaction with Hunter B2B data for finding and managing company and people information.
    Last updated -
    6
    7
    Python
    MIT License

  • Agentic Tools MCP Server

    Pimzino
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    security
    A
    license
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    quality
    A Model Context Protocol server providing AI assistants with comprehensive project, task, and subtask management capabilities with project-specific storage.
    Last updated -
    29
    119
    27
    TypeScript
    MIT License
    • Apple
    • Linux

  • HubSpot MCP Server

    peakmojo
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    quality
    Enables AI models to interact with HubSpot CRM data and operations through a standardized interface, supporting contact and company management.
    Last updated -
    5
    56
    Python
    MIT License
    • Linux

  • MCP Think Tank

    flight505
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    security
    A
    license
    A
    quality
    Provides AI assistants with enhanced reasoning capabilities through structured thinking, persistent knowledge graph memory, and intelligent tool orchestration for complex problem-solving.
    Last updated -
    20
    84
    5
    TypeScript
    MIT License
    • Apple
    • Linux

  • Glean MCP Server

    gleanwork
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    quality
    A Model Context Protocol server that provides AI assistants with access to Glean's enterprise knowledge features, including content search, people directory, and AI chat capabilities.
    Last updated -
    3
    142
    43
    TypeScript
    MIT License

  • Valyu MCP Server

    valyu-network
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    security
    A
    license
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    A Model Context Protocol server that provides LLMs with access to Valyu's knowledge retrieval and feedback APIs for searching proprietary/web sources and submitting transaction feedback.
    Last updated -
    2
    TypeScript
    MIT License
    • Linux
    • Apple

  • Ragie Model Context Protocol Server

    ragieai
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    security
    A
    license
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    quality
    An MCP server that enables AI models to retrieve information from Ragie's knowledge base through a simple 'retrieve' tool.
    Last updated -
    1
    64
    19
    JavaScript
    MIT License
    • Apple

  • Graphlit MCP Serverofficial

    graphlit
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    A
    license
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    quality
    The Model Context Protocol (MCP) Server enables integration between MCP clients and the Graphlit service. Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a Graphlit project - and then retrieve relevant contents from the MCP client.
    Last updated -
    43
    1,643
    325
    TypeScript
    MIT License
    • Apple

  • Letta MCP Server

    oculairmedia
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    license
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    quality
    An MCP server implementation that enables interaction with the Letta API for managing agents, memory blocks, and tools in the Letta system.
    Last updated -
    9
    23
    JavaScript
    MIT License
    • Linux
    • Apple

  • Icypeas MCP Server

    Meerkats-Ai
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    security
    F
    license
    A
    quality
    A Model Context Protocol server that integrates with the Icypeas API to help users find work emails based on name and company information.
    Last updated -
    1
    JavaScript

  • memento-mcp

    gannonh
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    Scalable, high-performance knowledge graph memory system with semantic search, temporal awareness, and advanced relation management.
    Last updated -
    20
    65
    142
    TypeScript
    MIT License

  • AlphaVantage-MCP

    berlinbra
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    license
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    A Model Context Protocol (MCP) server that provides real-time access to financial market data through the free Alpha Vantage API. This server implements a standardized interface for retrieving stock quotes and company information.
    Last updated -
    5
    30
    Python
    MIT License
    • Apple

  • OSP Marketing Tools MCP Server

    x51xxx
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    A TypeScript implementation of a Model Context Protocol server that provides marketing tools based on Open Strategy Partners' methodologies, enabling content creation, optimization, and product positioning through tools like value map generation, meta information creation, and content editing.
    Last updated -
    6
    49
    1
    TypeScript
    CC BY-SA 4.0
    • Linux
    • Apple

  • BuildBetterofficial

    buildbetter-app
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    security
    F
    license
    A
    quality
    AI for product teams. Connect all your company and customer knowledge to all of your other tools via BuildBetter's MCP.
    Last updated -
    15
    JavaScript

  • Rememberizer MCP Server for Common Knowledge

    skydeckai
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    security
    A
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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 -
    Python
    Apache 2.0

  • MCP Memory Server

    StevenWangler
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    security
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    A Model Context Protocol server that provides knowledge graph-based persistent memory for LLMs, allowing them to store, retrieve, and reason about information across multiple conversations and sessions.
    Last updated -
    9
    25,063
    JavaScript
    MIT License

  • Agentsetofficial

    agentset-ai
    A
    security
    A
    license
    A
    quality
    An open-source platform for Retrieval-Augmented Generation (RAG). Upload documents and query them ⚡
    Last updated -
    1
    41
    5
    JavaScript
    MIT License

  • GemForge-Gemini-Tools-MCP

    PV-Bhat
    A
    security
    A
    license
    A
    quality
    Professional Gemini API integration for Claude and MCP-compatible hosts with intelligent model selection and advanced file handling capabilities.
    Last updated -
    4
    2
    TypeScript
    MIT License

  • Memory Custom

    BRO3886
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    security
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    license
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    quality
    A customized MCP memory server that enables creation and management of a knowledge graph with features like custom memory paths and timestamping for capturing interactions via language models.
    Last updated -
    11
    2
    JavaScript
    MIT License
    • Apple

  • People Data Labs MCP Server

    phxdev1
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    security
    A
    license
    A
    quality
    Provides comprehensive access to People Data Labs' data models and search capabilities, enabling enrichment of person and company profiles, multi-criteria searches, and autocomplete functionality through a Model Context Protocol interface.
    Last updated -
    10
    JavaScript
    Apache 2.0