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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:

  • Elasticsearch Knowledge Graph for MCP

    j3k0
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    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

  • MCP Tools for Obsidian

    jacksteamdev
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    A local MCP server that enables AI applications like Claude Desktop to securely access and work with Obsidian vaults, providing capabilities for reading notes, executing templates, and performing semantic searches.
    Last updated -
    342
    MIT License
    • Apple
    • Linux

  • 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 -
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    2
    1
    MIT License
    • Apple

  • usensedata-mcp-server-query-china-companyofficial

    usensedata
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    Usense Data API now supports the MCP protocol, enabling easy enterprise data access via LLMs through the MCP-compatible usensedata-mcp-server-query-china-company.
    Last updated -
    9
    2
    4
    • Apple
    • 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

  • Database Tools for Claude AI

    elber-code
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    MCP server that allows Claude AI to interact directly with MySQL databases, enabling query execution and table information retrieval through natural language.
    Last updated -
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  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • Knowledge MCP Service

    vietnama10
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    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

  • YaVendió Toolsofficial

    YaVendio
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    An MCP-based messaging system that allows AI systems to interact with various messaging platforms through standardized tools for sending text, images, documents, buttons, and alerts.
    Last updated -

  • 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 -

  • MCP Tools

    starzzzzzzzzzzzzzz
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    An MCP (Model Context Protocol) server implementation using HTTP SSE (Server-Sent Events) connections with built-in utility tools including echo, time, calculator, and weather query functionality.
    Last updated -

  • 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

  • GCP Billing and Monitoring MCP Server

    RadiumGu
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    Enables interaction with Google Cloud services including billing cost analysis, log querying, and metrics monitoring through natural language commands. Provides comprehensive tools for managing GCP resources, analyzing costs, detecting anomalies, and retrieving operational insights.
    Last updated -
    40
    Apache 2.0

  • 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

  • Code Knowledge MCP Server

    davidvc
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    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

  • Rememberizer MCP Server for Common Knowledge

    skydeckai
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    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

  • Logseq MCP Tools

    joelhooks
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    A Model Context Protocol server that provides AI assistants with structured access to your Logseq knowledge graph, enabling retrieval, searching, analysis, and creation of content within your personal knowledge base.
    Last updated -
    50
    • Apple

  • MCP Knowledge Base Server

    ikungsjl
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    A local document processing server that can index various document formats (PDF, DOCX, TXT, HTML) and answer questions based on their content using the Model Context Protocol.
    Last updated -
    8

  • ethereum-tools

    0xGval
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    A comprehensive toolkit for Ethereum blockchain analysis within Claude AI, enabling contract auditing, wallet analysis, profitability tracking, and on-chain data retrieval.
    Last updated -
    11
    736
    10

  • Divide and Conquer MCP Server

    landicefu
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    Enables AI agents to break down complex tasks into manageable pieces using a structured JSON format with task tracking, context preservation, and progress monitoring capabilities.
    Last updated -
    15
    49
    6
    MIT License
    • Apple
    • Linux

  • Avalanche MCP Tools

    utkucy
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    Enables natural language interaction with the Avalanche blockchain through AI assistants, allowing users to execute Avalanche CLI commands and AvalancheJS API operations without technical knowledge.
    Last updated -
    1

  • 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

  • TypeScript Tools MCP

    trkbt10
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    A Model Context Protocol (MCP) server that provides TypeScript development tools for automated refactoring and code analysis.
    Last updated -
    • Apple
    • Linux

  • MCP Civil Tools

    tutumomo
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    A Python-based MCP server that provides coordinate conversion between latitude/longitude and UTM/TWD97, along with various civil engineering calculation tools for LLM and AI application integration.
    Last updated -
    2
    • Linux
    • Apple

  • Account and Transaction MCP Server

    ag2-mcp-servers
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    An MCP Server that provides a conversational interface to the UK Open Banking account information API, allowing agents to interact with bank account data through natural language commands.
    Last updated -

  • mcp-sequentialthinking-tools

    spences10
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    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
    1,569
    369
    MIT License