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"How to Query a Knowledge Graph Using an Ontology" matching MCP servers:

  • Statistics Query and Verification MCP by ONSdigital

    Statistics Query andofficial

    ONSdigital
    F
    license
    -
    quality
    C
    maintenance
    MCP server for answering questions about official statistics from a single publication URL, with tools to check query scope, retrieve overview, text, data files, and search.
    Last updated
  • SOLVRO MCP - Knowledge Graph RAG System by Solvro

    SOLVRO MCP - Knowledge Graphofficial

    Solvro
    F
    license
    -
    quality
    F
    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.
    Last updated
    5
  • usensedata-mcp-server-query-china-company by usensedata

    usensedata-mcp-server-queryofficial

    usensedata
    A
    license
    A
    quality
    F
    maintenance
    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
    17
    5
    MIT
  • Kumiki A/B by kumikitools

    Kumiki A/Bofficial

    kumikitools
    A
    license
    -
    quality
    B
    maintenance
    MCP-first A/B testing server that enables agents to manage experiments (create, update traffic splits, read results, apply winning variants) from tools like Claude Code, with self-hosted Cloudflare backend.
    Last updated
    MIT
  • WhisperGraph by whisper-sec

    WhisperGraphofficial

    whisper-sec
    A
    license
    A
    quality
    B
    maintenance
    Self-hostable MCP server for WhisperGraph — a graph of 7.39B nodes / 39B edges mapping DNS, BGP, GeoIP, WHOIS, and threat intelligence. Six read-only tools (Cypher query + schema introspection + threat assessment), six resources, eight investigation prompts. stdio and Streamable HTTP transports.
    Last updated
    8
    68
    1
    Apache 2.0
  • Beever Atlas by Beever-AI

    Beever Atlasofficial

    Beever-AI
    A
    license
    A
    quality
    A
    maintenance
    Turns team chat (Slack, Discord, MS Teams, Mattermost) into a living knowledge base - a typed knowledge graph plus auto-generated wiki - exposed to AI agents through a 28-tool MCP server with semantic search, expert finding, and decision tracing.
    Last updated
    28
    433
    Apache 2.0
  • grafeo-mcp by GrafeoDB

    grafeo-mcpofficial

    GrafeoDB
    A
    license
    A
    quality
    D
    maintenance
    Enables AI agents to interact with an embedded graph database (GrafeoDB) via the Model Context Protocol, providing tools for graph CRUD, GQL queries, full-text and vector search, and graph algorithms.
    Last updated
    23
    4
    Apache 2.0
  • KumoRFM MCP Server by kumo-ai

    KumoRFM MCP Serverofficial

    kumo-ai
    A
    license
    A
    quality
    C
    maintenance
    Enables AI assistants to query KumoRFM for predictive analytics on relational data, including graph management, natural language to PQL conversion, and training-free predictions.
    Last updated
    12
    33
    MIT
  • Noctua MCP Server by geneontology

    Noctua MCP Serverofficial

    geneontology
    A
    license
    A
    quality
    C
    maintenance
    Enables editing and querying of Gene Ontology Causal Activity Models (GO-CAMs) through the Barista API. Supports model creation, individual and fact management, evidence addition, and causal pathway construction for biological knowledge representation.
    Last updated
    18
    BSD 3-Clause
  • ODEI MCP Server by odei-ai

    ODEI MCP Serverofficial

    odei-ai
    F
    license
    A
    quality
    C
    maintenance
    Provides access to ODEI's constitutional knowledge graph, AI safety guardrails, and EVM smart contract auditing tools. It enables users to query structured domain nodes, validate agent actions, and perform security audits directly through an MCP client.
    Last updated
    4
  • Minuet by minuetai

    Minuetofficial

    minuetai
    A
    license
    A
    quality
    B
    maintenance
    An MCP server for Minuet — the relationship layer for ERC-8004 AI agents. Exposes Minuet's read-only API as a set of MCP tools so any MCP-compatible client (Claude Desktop, Cursor, Cline, etc.) can query the ERC-8004 agent relationship graph natively.
    Last updated
    8
    MIT
  • MCPaeroedu by aerovfx

    MCPaeroeduofficial

    aerovfx
    A
    license
    A
    quality
    B
    maintenance
    Enables AI assistants to interact with the AeroEduVision platform, allowing exam generation, course management, knowledge graph queries, and student progress tracking through natural language commands.
    Last updated
    24
    MIT