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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.
apecloud/ApeRAG
ApeRAG: Production-ready GraphRAG with multi-modal indexing, AI agents, MCP support, and scalable K8s deployment
Memorix
Open-source cross-agent memory layer for coding agents via MCP. Compatible with Claude Code, Codex, Cursor, Windsurf, Gemini CLI, Antigravity, OpenClaw, Hermes Agent, Oh-my-Pi, Pi…
Tome
a magical LLM desktop client that makes it easy for *anyone* to use LLMs and MCP
CheMiguel23/MemoryMesh
A knowledge graph server that uses the Model Context Protocol (MCP) to provide structured memory persistence for AI models.
Ols4
The EMBL-EBI Ontology Lookup Service (OLS)
agentic-mcp-tools/memora
Give your AI agents persistent, collective memory — with deduplicating absorb, supersession lineage, semantic search, and a graph UI. Speaks MCP.
entanglr/zettelkasten-mcp
A Model Context Protocol (MCP) server that implements the Zettelkasten knowledge management methodology, allowing you to create, link, explore and synthesize atomic notes through…
Cortex Scout
A unified web extraction and stateful automation engine for AI. Replaces heavy testing frameworks with token-optimized browser control, deep research, and HITL.
Claude Memory MCP
Local citation-backed recall for Pi, OMP, Claude Code, Codex, and ChatGPT history.
Mie
Persistent memory graph for AI agents. Facts, decisions, entities, and relationships that survive across sessions, tools, and providers. MCP server — works with Claude, Cursor, Ch…
Codeprism
An experimental, 100% AI-generated, high-performance code intelligence server providing AI assistants with a graph-based understanding of codebases.
Memory Journal MCP
Secure AI Memory with Dynamic Project Detection, Automatic Session Briefing, Personal+Team Session Summary Prompts, Triple Search, Knowledge Graphs, GitHub Integration (Issues, PR…
Megamemory
Persistent project knowledge graph for coding agents. MCP server with semantic search, in-process embeddings, and web explorer.
omega-memory/omega-memory
Persistent memory for AI coding agents
Grafeo MCP
Exposes Grafeo as a set of MCP tools so that AI agents and assistants can query, traverse and mutate graph data.
Neo4j
mcp-neo4j-server
Google Knowledge Graph MCP
MCP server for Google's free public Knowledge Graph Search API - search for structured entity information about people, places, organizations, and concepts
Graphify
Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local determi…
Trail Code
Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.
M Flow
A bio-inspired cognitive memory engine — a new paradigm for Graph RAG.
SimpleMem
[ICML'26] SimpleMem: Efficient Lifelong Memory for LLM Agents — Text & Multimodal
Obsidian Wiki
Framework for AI agents to build and maintain a digital brain through Obsidian wiki | Memory System for Agents
Omnigraph
Object-storage native graph database with branching and typed ontology
Second Brain Os
An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian.
Omnigraph
Object-storage native graph database with branching and typed ontology
jcdickinson/simplemem
A very simple semantic MCP memory store
Obsidian Wiki
Framework for AI agents to build and maintain a digital brain through Obsidian wiki | Memory System for Agents
Second Brain Os
An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian.
server
EdegQuake 🌋 High-performance GraphRAG inspired from LightRag written in Rust; Transform documents into intelligent knowledge graphs for superior retrieval and generation
Code Review Graph
Local knowledge graph for Claude Code. Builds a persistent map of your codebase so Claude reads only what matters — 6.8× fewer tokens on reviews and up to 49× on daily coding task…
MemMachine
Universal memory layer for AI Agents. It provides scalable, extensible, and interoperable memory storage and retrieval to streamline AI agent state management for next-generation…
Gbrain
GBrain - AI Agent 的记忆与知识管理系统。让私有知识成为 AI 的上下文，支持三层检索（向量+BM25+RRF）、知识图谱、MCP 协议。
Pipeshub AI
PipesHub is a fully extensible and explainable workplace AI platform for enterprise search and workflow automation
SAG
An out-of-the-box document retrieval workbench built on SAG
Hyper Extract
Hypergraph is more powerful. Transform unstructured text into structured knowledge with LLMs. Graphs, hypergraphs, and spatio-temporal extractions — with one command.
Siyuan
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
Intelligent Audit System
Enterprise audit agent workspace with Agentic RAG, governed tool use, evaluation harness, memory, and human-review delivery workflows.
Yuxi
可私有部署的多租户知识智能体平台：统一 RAG、知识图谱、多智能体、MCP/Skills、沙盒与权限管理。Self-hosted knowledge agent platform for RAG, knowledge graphs and multi-agent workflows.
Ummon
The semantic layer for software engineering: Connect code to meaning, build on understanding
Mem0 MCP Selfhosted
Self-hosted mem0 MCP server for Claude Code. Run a complete memory server against self-hosted Qdrant + Neo4j + Ollama while using Claude as the main LLM.
Knowledge Graph
MCP server enabling persistent memory for Claude through a local knowledge graph - fork focused on local development
knowledge-graph
MCP server enabling persistent memory for Claude through a local knowledge graph - fork focused on local development
Branch Thinking MCP
Branch-Thinking MCP Tool A TypeScript-powered MCP server for managing parallel branches of thought, semantic cross-references, and persistent tasks. Features dynamic scoring, AI-g…
Amazon Sorftime Research MCP Skill
Analyze Amazon listings and categories using Sorftime MCP to deliver detailed competitor insights and automated product selection.
LinkedDataHub
The low-code Knowledge Graph application platform. Apache license.
Lumina Note
Lumina Note - A modern Markdown note-taking app with live preview, bidirectional links, and AI assistant
Mdflow
可视化项目记忆层：Canvas 看清架构，内置 MCP 让 AI 按需读取最小上下文，持续追踪变更、验证与历史。
Intellectual Dna
Personal knowledge system: MCP brain server, LanceDB vectors, 70+ pipelines for querying AI conversation history
Neuralmemory
Persistent Knowledge Graph Memory for AI Coding Agents. Adds long-term context (goals, strategies, preferences) to Cursor, Windsurf, & VS Code via MCP.
Obsidian AI Curator
Smart note consolidation for Obsidian using Claude AI. Automatically identifies and merges scattered fragments into structured knowledge via MCP. Like Tetris for your thoughts…