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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.
Skills
Cross-harness skills for Tribal
Code Graph
Multi-language code parser (Python, Rust, JS/TS, Go, Java, C/C++) that extracts dependency graphs and stores them locally in SQLite. Provides three access methods: CLI for direct…
Engram
MCP memory server for Claude Code, Cursor and AI agents - Rust local-first AI memory with hybrid search, SQLite, knowledge graph and Python/TypeScript SDKs
HiveMem
Personal knowledge system — MCP server with PostgreSQL semantic search and temporal knowledge graph
Cairn
agent wayfinding. temporal knowledge store in one sqlite file. no neo4j, no cloud, no lock-in.
Huda
Local, relation-first knowledge space: typed n-ary relations with immutable history in one SQLite store. Rust desktop, CLI, MCP and REST; offline by default, with optional local L…
Agentrelay
Supervise an AI coding agent (Claude Code / Codex / ACP) overnight and keep control: block forbidden tool calls before they run, gate 'done' on real tests, checkpoint work to git,…
Decision Graph
Engineering decision memory for your organization. Extract the why behind your code from PRs, issues, and commits, then ask natural-language questions - dg ask "Why was this built…
Engram
Persistent memory for AI coding assistants — replaces full session history with targeted fact injection. MCP server, semantic search, cross-project knowledge graph.
Engram
Local-first persistent memory for AI coding agents via MCP. Semantic search and session context for Claude Code, Cursor, and Codex.
Server
Open-source MCP server — a causal knowledge graph for AI agents. npx @causari/mcp-server
Cortex
Memory and knowledge service, MCP and TUI for AI agent workflows.
Synapse
MCP server: Persistent AI memory + knowledge graph + code search. Local-first. Pure SQLite. npm install -g synapse-cortex
Engram
Scope-aware memory architecture for multi-agent AI assistants. Powered by Mem0 + Qdrant + MCP.
Skillx
Engineering intelligence weaponized: a Rust-powered MCP knowledge engine steering AI through architecture, security, and delivery.
Second Brain
Trust-tier-aware, self-correcting knowledge-graph engine: turn forums, Reddit, websites and databases into counted, cited, confidence-bounded answers.
Pebbleagent
An extensible desktop AI agent
Codemap
🗺️ Token-efficient code knowledge graph & MCP server for AI agents. 96% token reduction with zero-infra SQLite + tree-sitter.
Shared Memory
Memory Framework based on the idea of Architectural Decision Records, shared knowledge between AI agents (Claude Code, Codex, Antigravity ...). Agent installable, vector (Postgres…
Nexo
NotebookLM propio de escritorio: tus fuentes se convierten en una wiki enlazada dentro de tu vault de Obsidian, con grafo, notas y Claude. Tauri 2 + Rust.
Roboonto
Machine-readable robot ontologies for LLM agents — query what a robot can do, validate actions before they touch hardware. IEEE 1872-anchored. Ships Unitree G1 & AgiBot X2 packs.
Second Brain Skill
Agent-agnostic skill: turn any codebase into a private, reproducible Obsidian 'second brain' (Graphify + codebase-memory-mcp).
Grafo
A deterministic semantic code graph for coding agents — symbols, calls, routes, events, config and blast radius, queryable from the CLI or any MCP client.
Couplet
Local-first code intelligence and context engine for Codex and Claude Code, powered by embedded SonnetDB.
Github Actions
Control GitHub Actions workflows from your AI assistant to list runs, read logs, rerun jobs, cancel builds, and trigger deployments within your editor.
Graphx
Temporal GraphRAG on libSQL/SQLite, Postgres, or DuckDB. Define a graph once with Zod and get typed mutations, bitemporal history, vector + full-text retrieval, an HTTP API with O…
Sparql MCP
A read-only MCP server that exposes a SPARQL 1.1 endpoint as agent tools: query, ask, list graphs, describe entity. Every write verb is rejected before it reaches the store, so an…
Brain
Self-improving project memory that documents its own creation — built on Cognee Cloud. Cures context rot for AI development.
Claude Memory MCP
Give Claude persistent memory between sessions - local Knowledge Graph, no cloud, no API key
Lightrag MCP
Streamable HTTP MCP Server for LightRAG
Cortex
An MCP server to build knowledge graph of OWL ontologies
Hydra
Context hydration engine for second brains — turns scattered agent work into a connected Obsidian vault. 100% Swift: SwiftUI app, CLI, and MCP server.
Symbiote
Symbiote bonds with your AI tools — giving them memory, context, and your coding DNA.
Engraph
Local knowledge graph for AI agents. Hybrid search + MCP server for Obsidian vaults.
Sparql
Generic SPARQL 1.1 MCP server — connect any AI agent to any triplestore (Fuseki, GraphDB, Stardog, Virtuoso, Neptune, Blazegraph)
A Mem MCP Server
A-MEM Agentic Memory System - MCP Server for IDE Integration (Cursor, VSCode) | Dual-Storage: ChromaDB + NetworkX DiGraph with explicit typed edges | Based on Zettelkasten
PDBe MCP Servers
PDBe MCP Servers integrate Protein Data Bank Europe resources with LLMs via Model Context Protocol. Provides seamless access to protein structure data through API tools and graph…
Archivist MCP
Archivist MCP is a local-first memory server for coding agents. It persists decisions, incidents, rules, entities, and graph relationships in SQLite, then exposes them over MCP (s…
LxDIG MCP
Dynamic Intelligence Graph (DIG) MCP server for AI coding agents. Persistent code knowledge graph, a code RAG improvement, with hybrid Graph + Vector + BM25 retrieval, agent memor…
Archiledger
Graph based implementation of the Model Context Protocol Memory Server
Grafyn
The knowledge base built for people who live in LLMs. Import conversations from ChatGPT, Claude, Gemini, and Grok. Run models side-by-side or watch them debate each other on your…
Pensyve
Universal memory runtime for AI agents. 8-signal retrieval, multimodal memory, spaced-repetition decay, and procedural learning. Rust core with Python, TypeScript, Go SDKs + MCP s…
whynowlab/jarvis-orb
time desktop visualization orb.
wazionapps/nexo
Shiffrin memory model (STM/LTM/sensory register), semantic RAG, Ebbinghaus decay, trust scoring, and 76+ MCP tools.
Magi
MAGI — Multi-Agent Graph Intelligence. Universal memory server for AI agents. MCP + gRPC + REST API with semantic search, knowledge graph, and behavioral pattern analysis.
Aman Agent
Your AI companion, running locally — powered by the aman ecosystem
Mempalace Node
Implement a high-recall local memory system for Node.js using verbatim storage and pluggable vector backends without cloud dependencies.
Graphrag Code
🕸️ Code knowledge graph for Claude Code & AI coding agents — index TypeScript, NestJS, React into Neo4j and query architecture in Cypher
Openeruka
Self-hosted Eruka-compatible memory server — SQLite backend, REST API, MCP, and CLI. Single binary.
DuhoKim/NebulaMind
Collaborative astronomy wiki built by AI agents. 34 topics, 115 knowledge graph connections. Register, read, edit, vote, comment, and explore the cosmos via open API. No auth requ…