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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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7,535 servers. Last updated 2025-07-27 20:53

Matching MCP tools:

Matching MCP servers:

  • 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 5 months ago
    11
    838
    51
    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 6 months ago
    9
    55,855
    5
    JavaScript

  • 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 a day ago
    9
    55,855
    61,641
    TypeScript
    MIT License
    • Apple
    • Linux

  • 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 4 days ago
    8
    14
    43
    TypeScript
    MIT License
    • Apple

  • 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 2 months ago
    9
    426
    512
    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 4 months ago
    17
    13
    TypeScript

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  • 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 5 months ago
    13
    55,855
    51
    JavaScript
    MIT License

  • Memory Custom

    BRO3886
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    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 4 months ago
    11
    4
    JavaScript
    MIT License
    • Apple

  • 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 6 days ago
    20
    85
    157
    TypeScript
    MIT License

  • MCP Memory Server

    StevenWangler
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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 a month ago
    9
    55,855
    2
    JavaScript
    MIT License

  • Obsidian Memory MCP

    YuNaga224
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    Stores AI memories as Markdown files for visualization in Obsidian's graph view, allowing users to create knowledge graphs with entities, relations, and observations.
    Last updated 17 days ago
    9
    1
    TypeScript
    MIT License

  • MCP Think Tank

    flight505
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    Provides AI assistants with enhanced reasoning capabilities through structured thinking, persistent knowledge graph memory, and intelligent tool orchestration for complex problem-solving.
    Last updated 13 days ago
    20
    333
    23
    TypeScript
    MIT License
    • Apple
    • Linux

  • 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 7 months ago
    6
    Python
    MIT License

  • MemoryMesh

    CheMiguel23
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    This project is based on the Knowledge Graph Memory Server from the MCP servers repository and retains its core functionality.
    Last updated 6 months ago
    44
    277
    TypeScript
    MIT License
    • 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 4 months ago
    14
    TypeScript
    MIT License

  • Knowledge Graph Memory Server

    bneil
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    quality
    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 months ago
    4
    JavaScript
    MIT License
    • Apple

  • cognee-mcp

    topoteretes
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    quality
    Memory manager for AI apps and Agents using various graph and vector stores and allowing ingestion from 30+ data sources
    Last updated a day ago
    4
    6,472
    Python
    Apache 2.0
    • Apple

  • basic-memory

    basicmachines-co
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    Basic Memory is a knowledge management system that allows you to build a persistent semantic graph from conversations with AI assistants. All knowledge is stored in standard Markdown files on your computer, giving you full control and ownership of your data. Integrates directly with Obsidan.md
    Last updated 3 days ago
    9
    1,375
    Python
    AGPL 3.0
    • 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 4 months ago
    3
    Python
    • Linux

  • Memory MCP Server

    grizzlypeaksoftware
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    A Model Context Protocol server that enables Claude to persistently store, search, and manage text memories with tags in a local JSON file.
    Last updated 4 months ago
    14
    18
    TypeScript
    • Apple

  • IaC Memory MCP Server

    AgentWong
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    Enhances Claude AI with persistent memory storage for Infrastructure-as-Code components, supporting version tracking and relationship mapping for Terraform and Ansible resources.
    Last updated 6 months ago
    23
    6
    Python
    MIT License

  • Memory Bank MCP

    movibe
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    Memory Bank Server provides a set of tools and resources for AI assistants to interact with Memory Banks. Memory Banks are structured repositories of information that help maintain context and track progress across multiple sessions.
    Last updated 4 months ago
    15
    397
    41
    TypeScript
    MIT License

  • Memory MCP

    HamzaFarhan
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    F
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    A knowledge-graph-based memory system for AI agents that enables persistent information storage between conversations.
    Last updated 2 months ago
    4
    Python

  • IAC Memory MCP Server

    AgentWong
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    A custom Memory MCP Server that acts as a cache for Infrastructure-as-Code information, allowing users to store, summarize, and manage notes with a custom URI scheme and simple resource handling.
    Last updated 6 months ago
    23
    1
    Python
    MIT License
    • Apple

  • mcp-with-ssh

    aakarsh-sasi
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    Memory bank with Server as SSH support for central knowledge base
    Last updated a month ago
    15
    38
    22
    TypeScript
    MIT License

  • mcp-memory-libsql

    spences10
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    A high-performance MCP server utilizing libSQL for persistent memory and vector search capabilities, enabling efficient entity management and semantic knowledge storage.
    Last updated 3 days ago
    6
    133
    63
    TypeScript
    MIT License

  • Memory MCP Server

    evangstav
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    Provides knowledge graph functionality for managing entities, relations, and observations in memory with strict validation rules to maintain data consistency.
    Last updated 5 months ago
    16
    Python
    MIT License

  • MCP Persistent Memory Server

    dirkenglund
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    Provides persistent graph memory with automatic disk storage for building knowledge graphs, storing entity relationships, and maintaining context across sessions.
    Last updated 21 days ago
    JavaScript

  • 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 18 days ago
    2
    5
    19
    TypeScript
    The Unlicense
    • Linux
    • Apple

  • MCP Memory LibSQL

    joleyline
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    A high-performance, persistent memory system for the Model Context Protocol (MCP) providing vector search capabilities and efficient knowledge storage using libSQL as the backing store.
    Last updated 5 months ago
    6
    133
    10
    TypeScript
    MIT License
    • Linux

  • Roo Code Memory Bank MCP Server

    IncomeStreamSurfer
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    quality
    Enables AI assistants to maintain persistent project context across sessions by storing and retrieving structured information in markdown files organized in a memory bank directory.
    Last updated 3 months ago
    4
    53
    JavaScript
    Apache 2.0
    • Linux
    • Apple

  • Memory Bank MCP Server

    alioshr
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    Provides a centralized MCP-based system for managing and accessing multi-project memory banks remotely, with features like project isolation, file structure validation, and type-safe operations.
    Last updated 3 months ago
    5
    572
    555
    TypeScript
    MIT License
    • Apple
    • Linux