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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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7,731 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • GraphDB MCP Server

    keonchennl
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    A Model Context Protocol server that provides read-only access to Ontotext GraphDB, enabling LLMs to explore RDF graphs and execute SPARQL queries.
    Last updated -
    2
    8
    JavaScript
    GPL 3.0

  • Ontology MCP

    bigdata-coss
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    A Model Context Protocol (MCP) server that connects GraphDB's SPARQL endpoints and Ollama models to Claude, enabling Claude to query and manipulate ontology data while leveraging various AI models.
    Last updated -
    28
    1
    TypeScript
    MIT License
    • Apple
    • Linux

  • Azure Resource Graph MCP Server

    hardik-id
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    A Model Context Protocol server for querying and analyzing Azure resources at scale using Azure Resource Graph, enabling AI assistants to explore and monitor Azure infrastructure.
    Last updated -
    1
    10
    TypeScript
    MIT License
    • Linux
    • Apple

  • GraphQL MCP Server

    FabrWill
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    A Model Context Protocol server for executing GraphQL queries, allowing AI models to interact with GraphQL APIs through introspection and query execution.
    Last updated -
    3
    469
    JavaScript
    MIT License

  • mcp-graphql

    blurrah
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    MCP for working with GraphQL servers.
    Last updated -
    2
    469
    242
    TypeScript
    MIT License
    • Apple

  • MCP DuckDB Knowledge Graph Memory Server

    IzumiSy
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    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
    43
    TypeScript
    MIT License
    • Apple

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  • Knowledge Graph Memory Server

    T1nker-1220
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    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
    48,132
    51
    JavaScript
    MIT License

  • 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
    48,132
    62,433
    TypeScript
    MIT License
    • Apple
    • Linux

  • 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
    255
    522
    JavaScript
    MIT License
    • Apple

  • 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 -
    17
    14
    TypeScript

  • Advanced Hasura GraphQL MCP Server

    husamabusafa
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    A Model Context Protocol server that enables AI agents to dynamically interact with Hasura GraphQL endpoints through natural language, supporting schema discovery, data querying/manipulation, and aggregations.
    Last updated -
    9
    11
    TypeScript

  • GraphQL MCP Server

    ctkadvisors
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    A TypeScript server that provides Claude AI with seamless access to any GraphQL API through the Model Context Protocol.
    Last updated -
    6
    8
    JavaScript
    • Apple

  • Narrative Graph MCP

    angrysky56
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    A Model Context Protocol server implementing the Random Tree Model for encoding, compressing, and recalling narrative information across different levels of abstraction with configurable cognitive parameters.
    Last updated -
    4
    TypeScript

  • 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
    742
    52
    JavaScript
    • Apple

  • 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
    48,132
    5
    JavaScript

  • mcp-graphql

    launchthatbrand
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    A Model Context Protocol server that enables LLMs to interact with GraphQL APIs by providing schema introspection and query execution capabilities.
    Last updated -
    469
    1
    MIT License
    • Apple

  • 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
    JavaScript
    MIT License
    • Apple

  • Microsoft Graph MCP Server

    burconsult
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    A comprehensive server that enables AI applications to interact with Microsoft 365 and Azure AD services through standardized Model Context Protocol interfaces.
    Last updated -
    1
    Python
    MIT License

  • 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 -
    14
    TypeScript
    MIT License

  • 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 -
    15
    Python
    MIT License

  • mcp-graphql-schema

    hannesj
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    A MCP server that exposes GraphQL schema information to LLMs like Claude. This server allows an LLM to explore and understand large GraphQL schemas through a set of specialized tools, without needing to load the whole schema into the context
    Last updated -
    12
    38
    JavaScript
    MIT License
    • Apple
    • Linux

  • The Graph Token API MCP

    pinax-network
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    Official MCP server that turns The Graph’s Token API into a plug-and-play web3 data tool. Exposes ERC-20 & NFT metadata, balances, transfers, top-holder stats, prices, and more, allowing LLMs to run SQL queries on structured and indexed blockchain data.
    Last updated -
    Apache 2.0

  • Knowledge Graph Memory Server

    AgentWong
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    A persistent memory implementation using a local knowledge graph that lets Claude remember information about users across conversations.
    Last updated -
    6
    Python
    MIT License

  • 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.
    Last updated -
    2
    Python

  • mcp-graphql-forge

    toolprint
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    MCP that can proxy any GraphQL API and expose graphql operations as mcp tools.
    Last updated -
    7
    9
    TypeScript

  • Microsoft Graph MCP Server

    uniQuk
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    A Model Context Protocol server that connects to Microsoft Graph API, allowing AI assistants to query and access data from Microsoft Entra ID (formerly Azure Active Directory).
    Last updated -
    1
    Python

  • GitHub GraphQL API MCP

    wanzunz
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    A server that allows you to explore the GitHub GraphQL schema and execute GraphQL queries through MCP client tools, enabling efficient data retrieval from GitHub with reduced token consumption.
    Last updated -
    4
    Python
    • Linux
    • Apple

  • German Family Business Knowledge Graph MCP Server

    guangxiangdebizi
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    An MCP server that enables AI assistants to query and access structured knowledge about German family businesses through a Neo4j graph database, supporting complex relationship queries and semantic searches.
    Last updated -
    1
    Python
    • Linux
    • Apple

  • GraphQL MCP Toolkit

    kailashAppDev
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    A Model Context Protocol server that enables LLMs to interact with GraphQL APIs by providing schema introspection and query execution capabilities.
    Last updated -
    1
    TypeScript
    • Apple
    • Linux

  • 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
    Python
    • Linux