MCP Servers

Memory

✓★ 88,000

Knowledge graph-based persistent memory system

Qdrant

✓★ 1,500

Implement semantic memory layer on top of the Qdrant vector search engine

Neo4j

★ 972

Neo4j graph database server (schema + read/write-cypher) and separate graph database backed memory

MCP Knowledge Graph

★ 870

Provides persistent memory for AI models using a local knowledge graph.

Memento MCP

★ 425

A scalable knowledge graph memory system for LLMs with semantic retrieval and temporal awareness, using Neo4j as a backend.

MemoryMesh

★ 347

A knowledge graph server for AI models, focusing on text-based RPGs and interactive storytelling.

ogham-mcp

★ 110

Persistent shared memory for AI agents. Hybrid search (pgvector + tsvector), knowledge graph, cognitive scoring - 97.2% Recall@10 on LongMemEval

Mem0 MCP

★ 97

Integrates with Mem0.ai to provide persistent memory capabilities for LLMs, supporting cloud, Supabase, and local storage.

mem0-mcp-selfhosted

★ 96

Self-hosted mem0 MCP server for Claude Code. Run a complete memory server against self-hosted Qdrant + Neo4j + Ollama while using Claude as the main LLM.

Cursor10x MCP

★ 80

A memory system for the Cursor code editor, providing persistent context awareness for Claude via a Turso database.

DuckDB Knowledge Graph Memory

★ 57

An MCP memory server that uses a DuckDB backend for persistent knowledge graph storage.

Memory-Plus

★ 57

a lightweight, local RAG memory store to record, retrieve, update, delete, and visualize persistent "memories" across sessions—perfect for developers working with multiple AI coders (like Windsurf, Cursor, or Copilot) or anyone who wants their AI to actually remember them.

Knowledge Graph Memory Server

★ 52

Enables persistent memory for Claude using a knowledge graph stored in local JSON files.

Engram

★ 40

Persistent memory layer for AI agents with semantic search, consolidation, and cross-session intelligence via MCP.

Memlord

★ 27

Self-hosted MCP memory server for personal use and teams

Chroma MCP Server

★ 26

An MCP server for the Chroma embedding database, providing persistent, searchable working memory for AI-assisted development with features like automated context recall and codebase indexing.

engram-rs-mcp

★ 26

MCP server for engram — persistent, brain-like memory for AI agents.

KuzuMem-MCP

★ 25

A distributed memory bank MCP tool that stores memories in a KùzuDB graph database, with repository and branch filtering capabilities.

Neo4j Knowledge Graph Memory

★ 24

A knowledge graph memory server using the Neo4j graph database to store and retrieve information from AI interactions.

Qdrant Memory

★ 24

A knowledge graph implementation with semantic search powered by the Qdrant vector database.

MCP Memory libSQL

★ 24

A persistent memory system for MCP using libSQL, providing vector search and efficient knowledge storage.

YantrikDB

★ 22

Cognitive memory for AI agents - persistent semantic memory with knowledge graph and adaptive recall

Membase MCP

★ 22

A decentralized memory layer for AI agents providing secure, persistent storage for conversation history and knowledge.

memory-mcp

★ 18

A simple MCP server that stores and retrieves memories from multiple LLMs.

Local Context Memory MCP

★ 12

A production-ready persistent memory system for AI agents, offering searchable memory across sessions with semantic search and support for multiple database backends.

Zero-Vector MCP

★ 9

A high-performance vector database server for AI persona memory management.

Epitome

★ 8

Personal AI memory — gives every AI agent shared, persistent memory of you

Hebbian Mind Enterprise

★ 5

MCP memory server with Hebbian learning — concept connections strengthen through co-activation and weaken through disuse.

Memory Custom

★ 4

Extends the MCP Memory server to create and manage a knowledge graph from LLM interactions.

Personal Memory MCP Server

★ 4

A TypeScript and SQLite-based server enabling AI to remember personal data for personalized communication.