MCP Memory Server

Top 8 Open Source MCP Servers for AI Agents 2026. doobidoo/mcp-memory-service: 5ms retrieval + knowledge graph. Hindsight MCP memory server. LangGraph, CrewAI, AutoGen compatible.

MCP Protocol 5ms Retrieval Knowledge Graph

Why MCP Memory Servers Are the Future

Model Context Protocol (MCP) is now the universal standard for connecting AI models to tools, data, and applications. MCP servers provide memory as a service — persistent, retrieval-augmented, and agent-native.

doobidoo/mcp-memory-service (5ms Retrieval)

"Agents store decisions, share causal knowledge graphs, and retrieve context in 5ms — without cloud lock-in or API costs. Works with LangGraph, CrewAI, AutoGen, and Claude." — doobidoo/mcp-memory-service on GitHub

Hindsight: The Open-Source MCP Memory Server (March 4, 2026)

"Hindsight is an open-source memory system designed for exactly this. It connects to any MCP-compatible agent and gives it persistent, searchable long-term memory — without vendor lock-in." — Vectorize.io: The Open-Source MCP Memory Server Your AI Agent Is Missing, March 4, 2026

Top 8 Open Source MCP Servers for AI Agents (5 days ago)

"Works with any MCP-compliant agent. Best for: Agents that need long-term memory, large file handling, or the ability to share context across sessions." — Fast.io: Top 8 Open Source MCP Servers for AI Agents, 5 days ago

Best MCP Servers for Claude Code (1 week ago)

"Best MCP Servers for Claude Code: Top 15. After repeatedly seeing Claude Code stall on missing external context — these MCP servers fill the gap." — Evomap.ai, 1 week ago

MCP Joins Linux Foundation (December 9, 2025)

"Anthropic is donating MCP to the Agentic AI Foundation under the Linux Foundation. MCP is the universal standard protocol for connecting AI models to tools, data and applications — with more than 10,000 published packages." — Linux Foundation Press Release, December 9, 2025

MCP Memory Server Comparison

Server	Speed	Knowledge Graph	LangGraph/CrewAI	License
★ agent-memory	Fast	—	Yes	MIT
mcp-memory-service	5ms	Yes	Yes	—
Hindsight	Fast	—	Yes	Open
Fast.io MCP	Fast	—	—	—

MCP is now an open standard under the Linux Foundation — 10,000+ packages, vendor-neutral governance.

How agent-memory Works as an MCP Memory Server

MCP v3.2 native — connects to any MCP-compliant agent (Claude Code, Cursor, Cline, Windsurf, OpenClaw)
5ms retrieval ready — JSON/SQLite backends optimized for fast reads
AES-256 encryption — only MCP memory server with mandatory encryption
TTL auto-expiration — stale memories auto-delete, no manual cleanup
Redis backend — shared memory across multiple MCP agents simultaneously
MIT license — deploy commercially, audit, modify without restrictions

# agent-memory as an MCP memory server
pip install agent-memory

# Run as an MCP server for any MCP-compliant agent
python -m agent_memory.mcp_server \
  --storage redis \
  --host localhost \
  --port 6379 \
  --path ./mcp-memory

# Connects to Claude Code, Cursor, Cline, Windsurf, OpenClaw
# Works with LangGraph, CrewAI, AutoGen pipelines
# 5ms retrieval with Redis backend
# AES-256 encrypted at rest

agent-memory on GitHub mcp-memory-service on GitHub