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長期記憶向けおすすめMCPサーバー（2026年）

長期記憶向けに人気のオープンソースMCPサーバー30件を、GitHubのスター数順に並べました。各サーバーのページでは、リポジトリ情報、（README に記載がある場合は）インストール設定、関連サーバーを確認できます。

  1. Memory (official) Official – Knowledge graph-based persistent memory system.
  2. ruflo ★74702 – 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conver
  3. codebase-memory-mcp ★46608 – High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in mil
  4. context-mode ★29252 – Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and
  5. osaurus ★8048 – Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic
  6. x64dbg-mcp-server ★2506 – x64dbg-MCP Server is a native MCP (Model Context Protocol) plugin for x64dbg that exposes the debugger's full functional
  7. mcp-memory-service ★2014 – Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph
  8. cheatengine-mcp-bridge ★1644 – Connect your favorite AI agents directly to Cheat Engine via MCP. Automate reverse engineering, pointer scanning, and me
  9. aoci-code ★1551 – A persistent, Git-versioned map of your whole codebase and database schema that coding agents read before they touch any
  10. rocketmq-rust ★1528 – 🚀 Apache RocketMQ built in Rust 🦀 — faster, safer, and more memory-efficient. Powering high-performance messaging for
  11. tradememory-protocol ★1430 – Decision audit trail + persistent memory for AI trading agents. Outcome-weighted recall, tamper-evident SHA-256 chain wi
  12. nocturne_memory ★1391 – A lightweight, rollbackable, and visual Long-Term Memory Server for MCP Agents. Say goodbye to Vector RAG and amnesia. E
  13. PrismerCloud ★1386 – Prismer Cloud
  14. deja-vu ★1201 – Coding agent memory for Claude Code, Codex, Cursor and 39 more, built from the session history already on your disk. Loc
  15. agentrq ★1155 – AgentRQ: Human-in-loop realtime conversational task manager for AI Agents. Self-hosted! Control your own agents from whe
  16. memory-bank-mcp ★920 – A Model Context Protocol (MCP) server implementation for remote memory bank management, inspired by Cline Memory Bank.
  17. AgentChat ★916 – AgentChat 是一个基于 LLM 的智能体交流平台，内置默认 Agent 并支持用户自定义 Agent。通过多轮对话和任务协作，Agent 可以理解并协助完成复杂任务。项目集成 LangChain、Function Call、MCP
  18. iai-personal-memory-engine ★908 – A cyber brain for your AI. It never forgets a detail, remembers exactly what you said, and learns how you work over time
  19. NornicDB ★905 – Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and wri
  20. projectmem ★865 – Open-source coding agents memory. Records issues, attempts, fixes and decisions, then warns your agent before it repeats
  21. memorix ★840 – Open-source cross-agent memory layer for coding agents via MCP. Compatible with Claude Code, Codex, Cursor, Windsurf, Ge
  22. Wax ★804 – Shared Single-file memory layer for all your agents, sub mili-second RAG over text, photo and video on Apple Silicon.. N
  23. okf-agent-memory ★795 – Git-native persistent memory for AI coding agents. Implements Google OKF v0.2 with sub-300µs in-memory BM25 search, embe
  24. hippo-memory ★779 – Stop re-teaching your agent. Make your agent's memory work like a brain. Hippo is long-term memory for coding agents. It
  25. storybloq ★772 – Project memory and workflows for Claude Code and Codex. Keep stories, plans, handovers, and review evidence in your repo
  26. memora ★740 – Give your AI agents persistent, collective memory — with deduplicating absorb, supersession lineage, semantic search, an
  27. MegaMemory ★724 – Persistent project knowledge graph for coding agents. MCP server with semantic search, in-process embeddings, and web ex
  28. swarmvault ★717 – The local-first LLM Wiki: open-source knowledge graph builder, RAG knowledge base, and agent memory store. Built on Andr
  29. metaharness ★702 – 🛠️ The meta-harness for AI agents — scaffold your own focused, branded agent harness with its own npx CLI, MCP server,
  30. swarmclaw ★690 – Open-source self-hosted AI agent runtime and multi-agent framework for autonomous agent swarms. Agent memory, MCP tools,

よくある質問

長期記憶向けのMCPサーバーとは？

MCP（Model Context Protocol）サーバーは、Claude、Cursor、VS CodeのGitHub CopilotなどのAIアシスタントを外部のツールやデータにつなぐプログラムです。このページでは長期記憶に特化したサーバーを紹介しています。

ランキングの基準は？

GitHubのスター数と最近の更新状況です。2026年10月15日に更新した公開リポジトリのデータを使っています。

インストール方法は？

多くのサーバーは、クライアントのMCP設定ファイルにnpx・uvx・Dockerのコマンドを追加するだけで使えます。Claude Desktop、Cursor、VS Code向けのガイドで手順を詳しく説明しています。

関連ガイド

週刊MCPダイジェスト – 新着・話題のMCPサーバーをメールでお届けします。