"Hybrid Memory Models Combining Relational, Graph, and RAG Approaches" matching MCP servers:

• Knowledge Graph Memory Server

  RMRanjit

  A

  license

  -

  quality

  D

  maintenance

  Provides persistent memory for Claude by implementing a local knowledge graph to store and retrieve entities, relations, and observations. This enables long-term information retention and personalization across different chat sessions.

  Last updated 2025-08-06

  79,449

  Sleepycat

• Knowledge Graph Memory Server

  yodakeisuke

  A

  license

  A

  quality

  D

  maintenance

  This MCP server provides persistent memory integration for chat applications by utilizing a local knowledge graph to remember user information across interactions.

  Last updated 2025-02-02

  9

  79,449

  6

  Sleepycat

• Loc Knowledge Graph Memory

  Myangsun

  A

  license

  -

  quality

  D

  maintenance

  Enables Claude to remember information about users across conversations by storing and retrieving data as entities, relations, and observations in a persistent local knowledge graph.

  Last updated 2025-10-01

  79,449

  Sleepycat

• Vektor Memory

  Vektor-Memory

  F

  license

  -

  quality

  B

  maintenance

  Slipstream - Built by Vektor Memory - a persistent multi-layered memory architecture. 4-layer associative graph memory (MAGMA) with autonomous REM cycle, CLI, DXT-MCP Cloak Tools.

  Last updated 2026-07-18

  4

• mcp-knowledge-graph

  shaneholloman

  A

  license

  A

  quality

  C

  maintenance

  An improved implementation of persistent memory using a local knowledge graph with a customizable --memory-path. This lets Claude remember information about the user across chats.

  Last updated 2026-05-29

  6

  10

  345

  875

  MIT

• thought-graph-mcp

  jeff-ong

  A

  license

  A

  quality

  B

  maintenance

  Enables LLMs to break down reasoning into an explicit, editable graph of thinking steps, with visualizations and the ability to revise individual steps.

  Last updated 2026-07-02

  6

  9

  Apache 2.0

• task-graph-mcp

  Oortonaut

  A

  license

  -

  quality

  D

  maintenance

  Provides structured workflows (phases, gates, coordination) for AI agents, enabling complex task execution with quality enforcement and multi-agent coordination via Model Context Protocol.

  Last updated 2026-03-04

  1

  Apache 2.0

• project-graph-mcp

  rnd-pro

  A

  license

  -

  quality

  B

  maintenance

  Maximizes AI agent context window by enabling compact code reading and editing, reducing tokens by 40% for deeper codebase understanding.

  Last updated 2026-07-17

  90

  3

  MIT

• Modular RAG MCP Server

  bliss-fox

  A

  license

  -

  quality

  C

  maintenance

  Enables building production-grade RAG systems with agentic reasoning, hybrid retrieval, and MCP protocol integration for use with Claude Desktop.

  Last updated 2026-06-20

  1

  MIT

• MCP Neo4j Knowledge Graph

  JovanHsu

  A

  license

  -

  quality

  D

  maintenance

  Enhanced knowledge graph memory server for AI assistants that uses Neo4j as the backend storage engine, enabling powerful graph queries and efficient storage of user interaction information with full MCP protocol compatibility.

  Last updated 2025-03-15

  24

  MIT

• MCP Two AI Models

  mamidi-joseph

  -

  license

  -

  quality

  C

  maintenance

  Enables two local LLMs (Qwen and Llama) to communicate via MCP, allowing one model to consult the other for second opinions or additional reasoning.

  Last updated 2026-07-18

  1

• Memory MCP

  HamzaFarhan

  F

  license

  -

  quality

  D

  maintenance

  A knowledge-graph-based memory system for AI agents that enables persistent information storage between conversations.

  Last updated 2025-05-23

  6

• Linksee Memory

  michielinksee

  A

  license

  A

  quality

  A

  maintenance

  Local-first cross-agent memory MCP. 6-layer structured brain (goal/context/emotion/impl/caveat/learning) with token-saving file diff cache (86% measured savings on re-reads)

  Last updated 2026-07-02

  8

  204

  13

  MIT

• mcp-memory

  ShipItAndPray

  A

  license

  A

  quality

  C

  maintenance

  Smart memory for AI agents. Solves the Karpathy problem: memories decay, topics are frequency-weighted, one-time questions don't become obsessions. 7 tools. Zero deps.

  Last updated 2026-03-29

  4

  14

  2

  MIT

• AI Memory MCP Server

  xiangzi1126

  A

  license

  A

  quality

  B

  maintenance

  A persistent, project-scoped memory layer for AI agents, supporting hybrid retrieval (vector, keyword, and tag matching) and sharing across different MCP clients like Claude Code, Qoder, or Cursor.

  Last updated 2026-07-15

  8

  MIT

• nexus-memory

  Y-Sky-bro

  A

  license

  A

  quality

  C

  maintenance

  A zero-dependency, file-based persistent memory system for AI agents with tiered memory, Ebbinghaus decay, and keyword retrieval.

  Last updated 2026-05-19

  5

  1

  MIT

• anneal-memory

  phillipclapham

  A

  license

  A

  quality

  A

  maintenance

  Two-layer memory for AI agents. Episodes compress into identity. The only MCP memory server with an immune system. Patterns earn permanence through evidence, false knowledge gets caught and demoted, and stale information fades — so your agent's memory gets smarter over time, not just bigger. Zero dependencies. 5 tools. Works with any MCP client.

  Last updated 2026-07-21

  16

  9

  MIT

• mcp-prose-memory

  gabrimatic

  A

  license

  A

  quality

  A

  maintenance

  Persistent memory server for MCP clients that stores structured facts as JSON across sessions, enabling atomic add, remove, replace, and view operations.

  Last updated 2026-07-24

  2

  8

  MIT

• Qwen Memory MCP

  John-CEO-HQ

  A

  license

  A

  quality

  B

  maintenance

  A Model Context Protocol server providing durable, cross-session memory for AI agents, powered by Qwen on Alibaba Cloud. Enables agents to write, search, recall, and forget memories with semantic ranking.

  Last updated 2026-07-17

  4

  MIT

• sqlite-memory-mcp

  RMANOV

  A

  license

  A

  quality

  A

  maintenance

  Governed cross-agent memory for coding agents with hybrid retrieval, provenance tracking, and cross-machine sync.

  Last updated 2026-07-24

  9

  14

  MIT