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MCP servers tagged knowledge-graph
958 live MCP servers tagged "knowledge-graph", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with knowledge-graph.
Spine Releases
Passive menu-bar shared brain for Claude Code, Codex and Antigravity: persistent memory, MCP hub, auto-learned skills, and zero-config advisor routing.
Keendreams Security
Open source memory layer for security agents. Every fact cites its evidence; only a human can confirm one. Runs in your own Cloudflare account.
Docugraph MCP
Universal Document Knowledge Graph MCP Server for AI Agents
Project AI
Self-hosted second brain for a codebase: Neo4j knowledge map built by AI, RLM task briefs from meeting notes, generated Claude Code plugins
Apexgraph
Apex-relevance subgraph retrieval for AI agents — feed your LLM the most relevant slice of a knowledge graph, within a token budget.
Personal GraphRAG
Self-hosted GraphRAG for personal memory — Claude writes the entities and the edges directly over MCP, no second extraction model. Journal-first durability, optional local stack.
Fleetmem
Self-hosted, governed long-term memory for a fleet of AI agents — MCP-native, with hybrid retrieval, a typed knowledge graph, and per-agent mTLS access control. Runs on your own h…
Bitemporal Memory
An MCP server written from scratch in pure stdlib, with two clocks: valid time and transaction time. Answers what the system BELIEVED at a past date, not just what was true.
ExcelGRAG
Turn a spreadsheet into a queryable property graph: ask a workbook a question in words, ground the answer in specific cells. Reads XLSB with formulas. Rust, MCP.
Neriamind
A knowledge alignment system for verifiable AI-generated knowledge
Symbiosis Brain
MCP memory server for Claude Code: a git-diffable Markdown vault (opens in Obsidian) with hybrid semantic search, a wiki-link graph, and bi-temporal facts — plus hooks that pull c…
Devt
Zero-dependency multi-agent development workflow plugin for Claude Code
CodeNexus
Multi-language code knowledge graph built on LadybugDB and tree-sitter — semantic code search, symbol tracing, impact analysis, data-flow analysis, and MCP server integration
Theorex
🧠 3-lobe cognitive memory for AI agents — concept web with semantic decay, boot injection, closed learning loop. The reasoning core.
Yashigatakae
Cross-device Claude Code operating system built for developers who want memory, speed, and continuous productivity.
AetherDB
AI-native database with semantic search, GraphRAG, hybrid search, full-text search, and edge deployment on Cloudflare Workers
Domaintome
Lore — living knowledge graph for software projects (MCP-backed)
Evidence Lens
EvidenceLens is a modern AI-enabled research platform for indexing, searching, and analyzing scientific literature. It combines vector search, document retrieval, and citation-awa…
Sinew
Open Bible connection-graph with 614K sourced cross-references and an MCP server for grounded agent queries.
RepoMindMCP
GraphRAG codebase intelligence: parses repos into a Neo4j knowledge graph, exposed as an MCP server for Claude Desktop/Cursor (Python backend + TypeScript MCP adapter)
Memory Persistor
PostgreSQL-backed MCP memory server with thermal decay + knowledge graph + hybrid retrieval
Pharma Intel MCP Demo Lite
A lightweight, reproducible demo of pharma competitive-intelligence graph construction and GraphRAG Q&A: 14 investor-deck PDFs → a Neo4j knowledge graph via neo4j-mcp-workspace-te…
Lavder Tcg Releases
Lavder TCG - public release feed (DMG + updater)
Agent Context Server
MCP server that turns an Obsidian vault into working memory for an LLM agent. Deterministic write guardrails in code, hybrid search (BM25 + vector + temporal + graph), automated r…
Okfgen
Turn any repo, database, or open-data portal into an AI-ready knowledge graph — one command, no LLM, no lock-in. Based on Google's OKF Spec
Codegraph Zh Tw
codegraph（MIT）的非官方繁體中文教學站——把整個 repo（程式碼／文件／MCP 工具／測試／案例）做成中英對照講解：概念地圖、學習路線、安裝指南、12 個文件教學頁、9 個程式碼對照頁，並收錄 graphify 互動知識圖譜與 codegraph 自跑（dogfooding）的真實輸出。
Llmwiki Agent Bridge
Bridge local agent runtimes to Markdown/wiki knowledge sources with grounded answers and traces.
Graphiti Folder
Append-only Graphiti memory and read-only MCP for a folder of Markdown and text documents.
Dsh Mindforge
Encrypted 4-layer lifelong memory plugin for DeepSeek Harness - powered by MindForge
Forkscout Memory MCP
Standalone MCP server for persistent AI agent memory — knowledge graph, conversation history, task tracking, and self-identity. Runs on Bun.
Nuclide
Nuclide: total information dominance on radiopharmaceuticals. An open, cited knowledge graph of theranostics and diagnostic nuclear medicine: 811 records, static JSON API, MCP ser…
Brainkb MCP
MCP server for accessing and querying BrainKB’s neuroscience knowledge graph.
Lucid Lineage GraphRAG MCP
A personal PoC exploring GraphRAG design patterns: combining LangChain orchestration, Neo4j knowledge graphs, and an integrated MCP server to analyse simulated data lineage and co…
Airgraph MCP
Hosted MCP server for persistent AI agent memory and workspace-scoped context. Connect Codex, Claude Code, Cursor, and other MCP clients with OAuth.
Context Chronicler
Subconscious Memory 2026: AI Coding Context Engine with Hybrid Semantic Search & MCP
FlowRAG
🌊 TypeScript RAG library with knowledge graph support — batch indexing, semantic search, entity extraction, and graph traversal. Lambda-friendly, Git-friendly, zero servers.
Python Repository Chat Agent
Multi-Agent System using Model Context Protocol (MCP) for intelligent repository analysis. 5 MCP servers (Orchestrator, Indexer, Graph Query, Code Analyst, Monitoring), a FastAPI…
Foglight
All-seeing internet intelligence layer for agents and humans — pluggable channels, persistent memory, temporal knowledge graph, monitoring and cited synthesis.
Better Base Tools
A collection of Claude Code plugins that provide more efficient base tools to reduce turns, duplicate tool calls, and token usage.
The Crab Engram
🦀 Persistent memory for AI coding agents — 7 auto-learning engines, encryption, graph-based knowledge. Written in Rust.
Kglite Docs
Agent-first knowledge base for documents. Built on kglite + BAAI/bge-m3. Multi-format ingest, cross-checked summaries, review kanban, grounding checks, and an MCP server.
Memorytonic
Personal long-term memory for researchers — equity, biology, policy, academic. Drop in papers, transcripts, reports; query the resulting Neo4j knowledge graph visually or by chatt…
KBAI Second Brain
A second brain that argues back — a typed-graph (graph-RAG) retrieval engine over an Obsidian vault: edge-weighted Personalised PageRank, multi-lens Council Mode, and retrieval qu…
HEngram
High-Performance Knowledge Graph MCP Server (Haskell + C++ Supervisor)
PMIS V2
Personal OS for work that ships — surprise-gated memory + project tracking + work sessions, bound by outcomes.
Curriculum Graph
A YAML curriculum ontology with MCP tools for searching, validating and editing the graph.
Citation Knowledge Agent
Agent that builds a citation knowledge graph from a seed arXiv paper -- discovers references via OpenAlex, classifies them (foundation/baseline/other) with Gemini, and answers que…
Atomic Memory Kit
Bidirectional atomic memory for agents: compile Markdown knowledge atoms into one context bundle, decompile back, and spotlight what's missing. Zero deps, no embeddings.
Tacitdb
Tacit — a provenance-first knowledge engine that self-hosts its own decision records. Rust workspace: core, keeper, MCP host, Python shell.
Acsac ANCHOR
ACSAC artifact for ANCHOR: schema-agnostic CTI knowledge graph construction via hybrid ontology discovery (UCO / STIX / MALOnt). Requested badges: Available, Functional.