Topic · updated 2026-10-05
Knowledge Graph MCP servers
91 Knowledge Graph MCP servers indexed on awesomemcp.in. Every entry links to a live GitHub repository with a known author, is de-duplicated across the official MCP registry and community lists, and carries an automated vulnerability-check badge. Built by @MystenLabs, @MakeaMouse, @modelcontextprotocol, @mastra-ai, @neo4j-contrib and 85 other authors.
Top 60 Knowledge Graph MCP servers
Semantic search across Sui documentation and knowledge sources, powered by kapa.ai
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★ 7,764
2026-10-05Compresses AI chat sessions into a typed knowledge graph. Local/offline via Ollama.
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★ 2
2026-07-30Knowledge graph-based persistent memory for maintaining context.
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★ 91,017
2026-10-05Provides AI assistants with direct access to Mastra.ai's complete knowledge base.
Needs review
★ 28,572
2026-10-05Neo4j integration: run queries, use Neo4j as knowledge graph memory and manage Neo4j Aura instances.
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★ 987
2026-09-09Manage your website's Asyntai AI support agent: knowledge base, agent instructions, conversations and leads, live visitor replies and plan usage.
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★ 1
2026-09-08Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
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★ 45,829
2026-10-05Self-hosted Markdown knowledge base with a web UI: search, read, create, edit, tag and template notes.
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★ 2,821
2026-10-05Markdown knowledge base as agent memory. Runs against the notes directory it is started in.
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★ 1,748
2026-10-04MCP Neo4j Knowledge Graph Memory Server
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★ 987
2026-09-09Persistent memory with knowledge graph visualization, semantic/hybrid search, cloud sync (S3/R2) and cross-session context management.
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★ 730
2026-09-28Instant, private access to your knowledge base: Zotero, Obsidian, Apple Notes (macOS).
Needs review
★ 625
2026-09-28Persistent agent memory as a single Go binary: knowledge graph, TUI observability, zero infra.
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★ 478
2026-10-02Open-source LLM knowledge base: team chat into a typed knowledge graph and auto-generated wiki.
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★ 450
2026-09-10Persistent memory infrastructure for AI agents. Identity, knowledge graph, and search.
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★ 330
2026-10-01MCP server for Yuque — expose your knowledge base to AI assistants.
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★ 246
2026-07-15Use Weaviate collections as a knowledge base and as a chat memory store.
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★ 162
2026-05-26LLM-driven context and memory management: short- and long-term memory with vector, timeline and knowledge graph retrieval plus reranking.
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★ 155
2026-01-13Retrieve context from your Ragie knowledge base, connected to sources like Google Drive, Notion and Jira.
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★ 91
2026-02-04Cybersecurity assessment of documents, questionnaires and reports: multi-format parsing, RAG knowledge base, risks, compliance gaps and remediations.
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★ 88
2026-10-05Git-native, review-gated knowledge base for LLM agents. Cited retrieval, audited writes.
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★ 82
2026-08-23Persistent local memory for coding agents: temporal knowledge graph, procedural and episodic recall
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★ 71
2026-09-30Token-efficient code review knowledge graph: semantic search and call-graph resolution.
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★ 68
2026-10-05Every Zammad ticket, article, and Knowledge Base operation as one CLI and MCP server - plus a
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★ 48
2026-10-03Open-source bitemporal memory layer for LLM agents — knowledge graph with conflict resolution.
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★ 41
2026-09-29Shared knowledge graph, skills, and tool discovery for AI agents through the Model Context Protocol.
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★ 35
2026-07-14Persistent knowledge graph and MCP server for AI workflows with git-tracked project context.
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★ 33
2026-10-05Knowledge base for Claude Code with semantic search, feed intelligence, and teams
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★ 24
2026-10-03Cognitive memory for AI agents — semantic recall, knowledge graph, and contradiction detection
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★ 24
2026-10-03Expose your Quickchat AI agent as an MCP server, giving AI apps real-time access to its knowledge base and conversational capabilities.
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★ 24
2026-03-24Local-first developer knowledge graph: watches project files, extracts entities and relationships with LLMs, and offers queries, a web dashboard and a CLI.
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★ 23
2026-09-30Temporal knowledge graph for codebases with constraint enforcement at the edit boundary.
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★ 22
2026-09-15Graph-powered code intelligence with semantic search and knowledge graph for AI assistants
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★ 20
2026-10-04Persistent knowledge graph MCP server for neurodivergent thinking. BM25 search, no cloud LLM.
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★ 20
2026-10-02Scaffold is a Retrieval-Augmented Generation (RAG) system designed to structural understanding of large codebases. It transforms your source code into a living knowledge graph, allowing for precise, context-aware interactions that go far beyond simple file retrieval.
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★ 19
2025-10-29Cross-session memory for AI agents - knowledge graph, scoring, semantic search
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★ 18
2026-10-01Local workspace memory: indexes Markdown, CSV and session logs into a vector store with hybrid search, cross-session memory and knowledge graph visualization.
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★ 17
2026-03-21Persistent memory for AI assistants with semantic search and knowledge graph relationships.
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★ 16
2026-09-30Local-first memory for coding agents: hybrid vector/BM25 retrieval with reranking, knowledge graph, session checkpoint/resume and multi-scope isolation.
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★ 15
2026-10-05Persistent local AI memory. SQLite + FTS5 + vector search, knowledge graph. No cloud, no API keys.
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★ 14
2026-10-05Local deterministic knowledge graph on redb with no LLM or embedding calls, BLAKE3 state hashing and canonical export for byte-identical audits.
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★ 14
2026-09-28Search Google's Knowledge Graph for structured information about real-world entities
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★ 12
2026-10-02ElevenLabs Conversational AI: agents, calls, conversations, and knowledge base for MCP hosts
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★ 12
2026-10-02Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.
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★ 12
2026-08-12Living knowledge graph for your repo: query with citations, remember/link facts, fact-check claims.
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★ 9
2026-08-17Local-first memory and knowledge graph for coding agents. Compact retrieval, no network.
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★ 9
2026-10-04Cross-agent memory over MCP: hybrid recall, knowledge graph, private/shared visibility, redaction.
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★ 9
2026-10-04Persistent memory for AI tools. Local-first knowledge graph with hybrid search.
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★ 9
2026-02-20High-performance knowledge graph MCP server for AI coding agents with semantic search.
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★ 9
2026-10-05Local knowledge graph memory MCP server for AI assistants.
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★ 8
2026-08-05Self-hosted hybrid agent memory on Qdrant combining vector search, BM25, temporal retrieval and an optional Memgraph knowledge graph via rank fusion.
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★ 8
2026-09-28AI knowledge graph for architecture, portfolio, and digital strategy management.
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★ 7
2026-03-07Structured knowledge base of crypto whitepapers.
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★ 7
2025-04-19Shared knowledge base for AI agents. Search and contribute solutions to technical problems.
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★ 6
2026-05-17Knowledge graph CLI for managing features, ADRs, and test criteria as MCP-discoverable artifacts.
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★ 6
2026-10-05Read and write a self-hosted TriliumNext knowledge base over its ETAPI.
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★ 5
2026-06-20Search and contribute to a shared knowledge base of AI-discovered problem-solution pairs.
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★ 5
2026-04-14MCP server for querying BrainKB, a knowledge base for neuroscience knowledge graphs.
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★ 5
2026-10-05Local-first personal memory that distills Feishu/Lark chats and Claude Code/Codex sessions into a private knowledge graph of people, projects and tasks.
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★ 5
2026-09-07Local SQLite memory for coding assistants: typed memories with confidence lifecycle, namespaces, knowledge graph, hybrid search and keychain credential vault.
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★ 5
2026-10-05
Search all 91 in the interactive index →
Quick install
Add the most popular option to Claude Code:
claude mcp add --transport http sui-knowledge-base--kapa-ai- https://sui.mcp.kapa.ai
FAQ
What is the best knowledge graph mcp server?
By GitHub stars, the most popular is Sui Knowledge Base (kapa.ai) by @MystenLabs (7,764 stars). awesomemcp.in lists 91 MCP servers for this topic, ranked by official status and popularity.
Are these MCP servers safe to install?
89 of 91 passed our automated vulnerability check (OSV.dev advisories for the published package, OpenSSF Scorecard, license, maintenance and provenance). The check is automated and does not guarantee 100% safety — review the code and permissions before installing.
How do I install Sui Knowledge Base (kapa.ai)?
With Claude Code: claude mcp add --transport http sui-knowledge-base--kapa-ai- https://sui.mcp.kapa.ai. Every listing on awesomemcp.in includes an install command and, where available, an mcp.json snippet for Claude Desktop, Cursor and other MCP clients.
Can AI agents read this list?
Yes. The full catalog is available as JSON at https://awesomemcp.in/api/mcps.json and https://awesomemcp.in/api/skills.json, and as plain text at https://awesomemcp.in/llms.txt.