58 #knowledge-graph MCP Servers & Clients

Memory

modelcontextprotocol

Model Context Protocol Servers

Mcp Knowledge Graph

shaneholloman

MCP server enabling persistent memory for Claude through a local knowledge graph - fork focused on local development

Zettelkasten MCP Server

entanglr

A Model Context Protocol (MCP) server that implements the Zettelkasten knowledge management methodology, allowing you to create, link, explore and synthesize atomic notes through Claude and other MCP-compatible clients.

Ummon

Nayshins

The semantic layer for software engineering: Connect code to meaning, build on understanding

MCP Neo4j Knowledge Graph Memory Server

JovanHsu

MCP Memory Server with Neo4j backend for AI knowledge graph storage

🚦 Branch-Thinking MCP Tool

ssdeanx

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-generated insights, batch operations, and visual graph navigation for advanced agentic workflows.

Tidemind

SawyerHan-AI

A living second brain that connects everything you think with — your AI agents, your notes, and beyond.

Knowledge Graph Memory Server

s2005

Standalone MCP server for enabling memory for Claude through a knowledge graph

Personal MCP server that runs on your Android phone via Termux. 29 tools: drawers, knowledge graph, diary, semantic search, tunnels. All data stored locally on your device, never on external servers. Works with Claude, Perplexity, Cursor, Windsurf, VS Code, Zed.

Fodda

piers-fawkes

Fodda gives AI agents access to expert-curated knowledge graphs across retail, beauty, sports, consumer electronics, fashion, and innovation, plus a supplemental layer of 22 institutional data sources including FDA, FRED, PubMed, BLS, and Census. Agents query structured, sourced

Cuba Memroys

lENADRO1910

Persistent memory MCP for AI agents — Knowledge graph + Hebbian learning + Anti-hallucination. 12 tools, 1 dependency, zero manual setup.

Persistent AI memory backend with semantic search and knowledge graph.

PMB (Personal Memory Brain) | Local first memory layer

oleksiijko

Local-first persistent memory for AI coding agents over MCP. Gives Claude Code, Cursor and Codex shared, durable project memory across sessions. No cloud, no API keys.

Retrieve The Forgotten Memory

roomi-fields

The open retrieval layer for AI coding agents. Indexes code, docs, legal, research, data — 15 parsers, FTS5 + semantic search, knowledge graph. Serves surgical context via MCP. Open source, local, free.

xocortex — an MCP server that gives your AI persistent memory across ALL your projects.

A high-performance, pure Rust Model Context Protocol (MCP) server that provides persistent, semantic, and graph-based memory for AI agents.

Myco Brain is a self-hosted, open-source (Apache-2.0) memory layer and MCP server for AI agents. Cross-session recall with a deterministic write path and source-backed answers (brain_why), on your own Postgres, no API keys to start. 11 brain_* tools; keyless semantic search via l

Cirdan maps and watches the live infrastructure your agent session can reach — Docker, Kubernetes, cloud, IaC, and telemetry — then exposes it over MCP. It fingerprints the environment, builds a dependency graph, detects incidents, and can run evidence-backed actions. It inherits

MCP Server

JanithSilva

MCP server that provides tools for metadata retrieval from SharePoint and entity retrieval from a Neo4j knowledge graph using semantic similarity search.

Kage

kage-core

A framework for collaborative agent memory. Kage is shared, code-grounded memory for developers and their coding agents: capture a learning once — a bug cause, a decision, a gotcha — and the whole team plus every agent recalls it next time it's relevant. Memory is grounded in you

Strata

agenerationforwordz-tech

Strata is a self hosted AI memory server. Your AI remembers everything across every session, on your own hardware.

Bottle Shop End of Trade Web Application

Diadems666

Cursor AI SSOT & Rule Engine Template: A comprehensive framework for integrating Cursor AI's advanced features into any project. Includes Single Source of Truth (SSOT) tracking, custom project rules, and Model Context Protocol (MCP) with Knowledge Graph for intelligent context ma

Multi-agent shared brain across Claude Code/Desktop, Codex, Antigravity CLI (agy), Gemini, Copilot, and VS Code. One local SQLite store for threads, notes, verbatim quotes, and a dialectic user model; spawn/broadcast/whisper/inbox multi-agent coordination primitives; autonomous b

MemClaw — persistent memory for AI agent fleets (OSS)

Vault Cortex

aliasunder

MCP server that exposes an Obsidian vault to any MCP client — no Obsidian plugins required. 26 tools + 3 prompts across vault CRUD, hybrid search (FTS5 + vector + cross-encoder reranking), task queries (Tasks-plugin + Dataview formats), structured memory (About Me/ files), link g

Cognitive memory system for AI agents with 129 MCP tools. Persistent hierarchical memory, emotional recall, knowledge graphs, spreading activation, hybrid retrieval (BM25+RRF), metacognition, goal tracking, spaced repetition, dream consolidation, and more.

Cairntir

pnmcguire480

Memory-first reasoning layer for Claude Code. Kills cross-chat AI amnesia. MCP server, verbatim storage, prediction-bound drawers, belief-as-distribution retrieval.

Epitome Personal Portable AI Memory Vault

gunning4it

Epitome gives every AI agent shared, persistent memory of you. It stores memories, facts, and preferences in a personal knowledge graph, so any AI tool you use already knows your context. Connect via MCP using Streamable HTTP — no local install needed.

Universal memory layer for AI agents. Semantic recall, automatic consolidation, and bi-temporal knowledge — in SQLite. 80% on LOCOMO benchmark using 96% fewer tokens.

Tribal captures the engineering knowledge that does not get written down in code or tickets. The reasoning behind a load-bearing decision, the heuristic someone keeps reaching for, the breakthrough that closed a gnarly bug.

DialogBrain

saloprj

Unified inbox MCP for WhatsApp, Telegram, Email, voice — read/send messages, search conversations, manage contacts, query knowledge graph, and trigger AI agents through natural language.

🔍 MCP Server - Vector Search

miosomos

MCP Server to improve LLM context through vector search.

Stateless Agent Memory Engine (SAME)

sgx-labs

Memory with integrity for AI coding agents. SAME tracks provenance, flags stale knowledge, and surfaces contradictions; so your AI trusts what's current, not what's outdated.

Knowledge Graph Memory Server

edobez

MCP server for enabling memory for Claude through a knowledge graph

Brain Protocol

seritalien

Verifiable Memory-as-a-Service for AI agents. Persistent, searchable, graph-connected knowledge with optional Starknet

Intelligent code knowledge graph for AI coding agents. Gives agents a persistent, queryable knowledge graph with search, call tracing, and agent write-back. 71% cheaper, 72%

Graphlens Mcp

Neko1313

Model Context Protocol (MCP) server for Graphlens. Exposes polyglot code graphs to LLM agents.

Graphiti

Joseperko1982

Customized Graphiti MCP server for brainstorming knowledge graphs with specialized entity types for ideas, themes, stakeholders, constraints, and creative collaboration

Memtrace — Structural Memory for AI Coding Agents

Alaya Memory Engine

SecurityRonin

A local memory engine for AI agents. Stores conversation episodes, consolidates knowledge through a neuroscience-inspired lifecycle, and builds a personal knowledge graph with emergent categories, preferences, and semantic recall. Local SQLite, zero config, 10 MCP tools.

Scaffold

Beer-Bears

Scaffold is a specialized RAG system that transforms entire codebase into a living knowledge graph, capturing the deep structural relationships between files, classes, and functions. This provides AI agents with the crucial context to accurately understand, maintain, and reason a

Aiqbee Brain

AIQBee

AI knowledge graph for architecture, portfolio, and digital strategy management. 25 MCP tools to manage brains, neurons, relationships, neuron types, and access control. OAuth 2.0 authenticated, remote hosted.

Right Reasons

Right-Reasons

Structured business ontology giving AI agents deterministic access to institutional reasoning — 18 MCP tools, Dolt backend, 0% → 100% "why?" recall vs Markdown+RAG.

Attestor

bolnet

Audit-grade memory backbone for agent teams. Bi-temporal facts (event time + transaction time, with recall(as_of=...) replay), 6-step deterministic retrieval (no LLM in the critical path), conversation ingest with speaker-locked dual-pass extraction, per-tenant Postgres row-level

Persistent memory for AI agents. 72 MCP tools for remember, recall, rollback, audit,

🔍 MCP Server - Vector Search

omarguzmanm

MCP Server to improve LLM context through vector search.

Hypergraph database for AI agents. Store n-ary relationships (edges connecting 2+ nodes), track provenance (source and confidence), and query paths — all backed by local

Memo

jagoff

memo is a local-first, long-term semantic memory for AI coding agents (Claude Code, Cursor, Cline, Codex). Runs fully offline with in-process embeddings — MLX on Apple Silicon or CPU sentence-transformers on Linux/Docker — and a sqlite-vec + BM25 hybrid retrieval pipeline with re

Stable Baseline

stablebaseline

Stable Baseline MCP server — end-to-end agent-managed company brain. 163 tools, OAuth 2.1 + Bearer API key, remote Streamable HTTP.

CKG-NVIDIA- AI - Nvidia Developer Stack As A Compressed Knowledge Graph - 20 Domains, 998 Nodes, Agents Traverse Type Dependency Graphs

Yarmoluk

NVIDIA AI developer stack as a Compressed Knowledge Graph (CKG) — 20 domains, 998 nodes, every prerequisite chain declared as typed edges. Agents traverse REQUIRES/ENABLES relationships instead of scanning docs. 4× F1 vs RAG, 11× fewer tokens. No API key required