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Memory
Knowledge-graph memory — store entities, observations, and relations across conversations.
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siyuan
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
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code-review-graph
Local-first code intelligence graph for MCP and CLI. Builds a persistent map of your codebase so AI coding tools read only what matters, with benchmarked context reductions on reviews and large-repo w
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m_flow
A bio-inspired cognitive memory engine — a new paradigm for Graph RAG.
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SimpleMem
SimpleMem: Efficient Lifelong Memory for LLM Agents — Text & Multimodal
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mcp-memory-service
Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.
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obsidian-mcp-plugin
High-performance Model Context Protocol (MCP) server for Obsidian that provides AI tools with direct vault access through semantic operations and HTTP transport.
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memora
Give your AI agents persistent memory.
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Ori-Mnemos
Local-first persistent agentic memory powered by Recursive Memory Harness (RMH). Open source must win.
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pmb
Local-first persistent memory for AI coding agents (Claude Code, Cursor, Codex) over MCP. Decisions, lessons and facts live in one SQLite file on your disk. Offline, multilingual.