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  • SEC Ownership Graph

    alexwoolford
    A
    license
    A
    quality
    B
    maintenance
    MCP server for querying the SEC Ownership Graph, providing curated read-only tools to analyze activist campaigns, control chains, and board interlocks from SEC filings. Answers cite accession numbers and abstain when data is insufficient.
    8
    MIT

  • qrz-mcp

    qso-graph
    A
    license
    A
    quality
    D
    maintenance
    MCP server for QRZ.com — callsign lookups, DXCC entity resolution, and logbook queries through any MCP-compatible AI assistant.
    6
    1
    GPL 3.0

  • lotw-mcp

    qso-graph
    A
    license
    A
    quality
    D
    maintenance
    MCP server for ARRL Logbook of The World (LoTW) that enables querying confirmations, uploaded QSOs, DXCC credits, and user activity through any MCP-compatible AI assistant. Part of the qso-graph project, it is read-only and requires LoTW credentials for authenticated tools.
    6
    1
    GPL 3.0

  • Elasticsearch Knowledge Graph

    j3k0
    A
    license
    B
    quality
    D
    maintenance
    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.
    20
    11
    20
    MIT

  • Azure Topology Graph MCP

    dhippley
    F
    license
    B
    quality
    C
    maintenance
    Enables exploration and analysis of Azure infrastructure by querying Azure Resource Graph, ARM, and Network Watcher APIs to create interactive topology maps. Provides tools for searching resources, discovering relationships, finding connectivity paths, and visualizing complete Azure infrastructure topologies.
    6

  • FastPostgresMCP

    llm-graph
    A
    license
    B
    quality
    D
    maintenance
    A blazing fast MCP server that enables AI agents to interact with multiple PostgreSQL databases, providing functionality to list tables, inspect schemas, execute queries, and run transactions.
    4
    225
    MIT

  • io.github.cunicopia

    cunicopia-dev
    A
    license
    Not graded
    quality
    B
    maintenance
    An embedded knowledge graph in one SQLite file, exposing a MCP server for agents to read and write entities and relationships with full audit trail and time travel.
    1
    MIT

  • LLM Graph Builder MCP

    henrardo
    A
    license
    Not graded
    quality
    D
    maintenance
    Enables Claude to automatically extract entities and relationships from URLs, PDFs, and YouTube videos to build structured knowledge graphs in Neo4j. It supports custom schemas, academic citation extraction, and community detection for advanced research and content analysis.
    Apache 2.0

  • Knowledge Graph Memory Server

    deanacus
    A
    license
    Not graded
    quality
    D
    maintenance
    A persistent memory server that implements a local knowledge graph using the Kuzu embedded database to store entities, relationships, and observations. It enables AI models to maintain structured long-term context through searchable nodes and comprehensive tag-based organization.
    8
    MIT

  • Code Graph Context

    andrew-hernandez-paragon
    A
    license
    Not graded
    quality
    D
    maintenance
    Builds rich code graphs from TypeScript/NestJS codebases using AST analysis and Neo4j, enabling semantic search, natural language querying, and intelligent graph traversal to provide deep contextual understanding of code relationships and dependencies.
    240
    17
    MIT
  • SOLVRO MCP - Knowledge Graph RAG System by Solvro

    SOLVRO MCP - Knowledge Graphofficial

    Solvro
    F
    license
    Not graded
    quality
    B
    maintenance
    Enables querying a Neo4j knowledge graph about Wroclaw University of Science and Technology using natural language. Converts user questions into Cypher queries and retrieves contextual information through an intelligent RAG pipeline with LLM-powered query routing.
    5

  • MCP Neo4j Knowledge Graph

    JovanHsu
    A
    license
    Not graded
    quality
    D
    maintenance
    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.
    24
    MIT

  • bd-graph MCP Server

    halaprix
    A
    license
    Not graded
    quality
    C
    maintenance
    Enables coding agents to query a temporal knowledge graph derived from a beads issue tracker via read-only Cypher queries, exposing current rules, supersession chains, and provenance without LLM API keys.
    MIT