Agent Memory Systems Vector Databases

Persistent memory architectures for AI agents combining vector search, graph storage, and knowledge retrieval. Includes semantic memory layers, long-term recall systems, and multi-modal ingestion. Does NOT include general RAG frameworks, context window optimization, or prompt management platforms.

There are 143 agent memory systems tools tracked. 1 score above 70 (verified tier). The highest-rated is topoteretes/cognee at 80/100 with 13,204 stars. 5 of the top 10 are actively maintained.

Get all 143 projects as JSON

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#	Tool	Score	Tier	Stars	Language
1	topoteretes/cognee Knowledge Engine for AI Agent Memory in 6 lines of code	80	Verified	13,204	Python
2	CaviraOSS/OpenMemory Local persistent memory store for LLM applications including claude desktop,...	61	Established	3,604	TypeScript
3	divagr18/memlayer Plug-and-play memory for LLMs in 3 lines of code. Add persistent,...	61	Established	261	Python
4	CortexReach/memory-lancedb-pro Enhanced LanceDB memory plugin for OpenClaw — Hybrid Retrieval (Vector +...	60	Established	2,280	TypeScript
5	verygoodplugins/automem AutoMem is a graph-vector memory service that gives AI assistants durable,...	58	Established	659	Python
6	memvid/memvid Memory layer for AI Agents. Replace complex RAG pipelines with a serverless,...	57	Established	13,421	Rust
7	verygoodplugins/mcp-automem AutoMem is a graph-vector memory service that gives AI assistants durable,...	55	Established	41	TypeScript
8	remembra-ai/remembra Universal memory layer for AI applications. Self-host in minutes. Open source.	53	Established	6	HTML
9	kothapavan1998/deeprecall Recursive reasoning engine for AI agents and vector databases. Powered by MIT's RLM.	52	Established	8	Python
10	marklubin/synix Memory architectures that evolve with your agent	52	Established	6	Python
11	plastic-labs/honcho Memory library for building stateful agents	49	Emerging	481	Python
12	Filippo-Venturini/ctxvault Local memory infrastructure for AI agents. Isolated vaults you compose,...	48	Emerging	26	Python
13	savantskie/persistent-ai-memory A persistent local memory for AI, LLMs, or Copilot in VS Code.	45	Emerging	207	Python
14	memfuse/memfuse Official Core Services for MemFuse - the lightning-fast open-source memory...	45	Emerging	22	Python
15	Terronex-dev/aifbin-recall Local-first memory server for AI agents. Query AIF-BIN semantic memory files...	44	Emerging	1	TypeScript
16	neurondb/neurondb PostgreSQL extension for vector search, embeddings, and ML, plus NeuronAgent...	44	Emerging	42	C
17	reorproject/reor Private & local AI personal knowledge management app for high entropy people.	44	Emerging	8,535	JavaScript
18	zircote/subcog Persistent memory system for AI coding assistants. Captures decisions,...	43	Emerging	17	Rust
19	RBKunnela/ALMA-memory Persistent memory for AI agents - Learn, remember, improve. Alternative to...	42	Emerging	20	Python
20	prefrontal-systems/cortexgraph Temporal memory system for AI assistants with human-like forgetting curves....	42	Emerging	28	HTML
21	jjang-ai/vmlx vMLX - Cont Batch, Prefix, Paged, KV Cache Quant, VL - Powers MLX Studio....	42	Emerging	15	Python
22	Technoculture/personal-graph Simple Graph Memory for AI applications	41	Emerging	91	Jupyter Notebook
23	riyogarta/syne AI Agent Framework with Unlimited Memory — PostgreSQL-native, self-evolving,...	41	Emerging	10	Python
24	orneryd/Mimir Mimir - Fully open and customizable memory bank with semantic vector search...	40	Emerging	249	Go
25	marswangyang/personal-ai-memory A local-first Chrome extension that passively captures ChatGPT, Gemini,...	39	Emerging	27	TypeScript
26	raold/second-brain 🧠 AI Second Brain — 100% Local Knowledge Management Private, self-hosted...	38	Emerging	13	Python
27	JasonDocton/lucid-memory Memory for AI that works like yours—local, instant, persistent. 13x faster...	38	Emerging	132	TypeScript
28	Papr-ai/memory-opensource Predictive memory layer for AI agents. MongoDB + Qdrant + Neo4j with...	37	Emerging	41	Python
29	Mdx2025/BrainX-The-First-Brain-for-OpenClaw 🧠 The First Brain for OpenClaw — Persistent vector memory for AI agents....	36	Emerging	24	JavaScript
30	serenichron/openclaw-memory-mem0 OpenClaw memory plugin backed by a self-hosted Mem0 REST API	36	Emerging	8	TypeScript
31	Ahen-Studio/mesosphere-backend Open Source Relational and Vector Embeddings Database	34	Emerging	2	Python
32	Itz-Agasta/context0 Decentralized memory-sharing protocol for AI agent	34	Emerging	6	TypeScript
33	roli-lpci/zer0dex Dual-layer memory for AI agents. Compressed index + vector store. 91%...	33	Emerging	14	Python
34	DewashishCodes/dolphin Open-source persistent memory infrastructure for LLM applications.🐬	33	Emerging	2	Python
35	NP-compete/cognitive-memory Memory that forgets, like humans do. A production-grade memory system for AI...	32	Emerging	1	Python
36	marcusjihansson/memory_opt Hierchical memory is the optimization technique applied to the 5 part memory...	32	Emerging	1	Python
37	omega-memory/memorystress The first longitudinal benchmark for AI memory systems. Test LLM agents, RAG...	32	Emerging	1	Python
38	DonTizi/ReMind Your Local Artificial Memory on your Device.	32	Emerging	508	TypeScript
39	eagleeyethinker/enterprise-agentic-ai-memory-lab This repository illustrates how enterprise AI agents should manage memory...	32	Emerging	1	Python
40	viditraj/llmfs Filesystem-based persistent memory for LLMs and AI agents -- unlimited...	31	Emerging	1	Python
41	alexpota/pg-agent-memory Stateful AI agent memory layer for PostgreSQL with pgvector -...	31	Emerging	2	TypeScript
42	memfuse/memfuse-python Official Python SDK for MemFuse - the lightning-fast open-source memory...	30	Emerging	2	Python
43	vishu570/contextforge 🔍 Optimize and manage prompts, agents, and templates with ContextForge, an...	29	Experimental	2	TypeScript
44	sobowalebukola/memcortex Memcortex is a lightweight semantic memory layer for LLMs using open source...	29	Experimental	21	Go
45	omnirexflora-labs/omnimemory Production-ready memory framework for AI agents. Dual-agent synthesis,...	28	Experimental	5	Python
46	Percolation-Labs/percolate An agentic orchestrator inside a relational-vector-graph/key-value database!	28	Experimental	61	Python
47	johnkf5-ops/cecil-protocol Persistent memory and identity protocol for AI systems with evidence-aware...	26	Experimental	6	TypeScript
48	breninfps/memlayer 🧠 Enhance LLMs with Memlayer for intelligent, contextual memory and fast...	24	Experimental	—	Python
49	RankMegaCraft51/memfuse-python MemFuse Python SDK offers a simple way to integrate memory capabilities into...	24	Experimental	—	Python
50	Zoranner/memo-brain Long-term memory for AI coding assistants. Rust CLI with semantic search,...	24	Experimental	2	Rust
51	splinterhq/libsplinter Splinter is an atomic, lock-free persist-able shared memory KV & vector...	24	Experimental	2	C
52	angrysky56/emotion_ai The Aura Emotion AI system has chroma with a local embedding model, memvid...	24	Experimental	10	Python
53	heybeaux/engram Memory infrastructure for AI agents. Type-aware, time-aware,...	23	Experimental	1	TypeScript
54	manasdb/manasdb The Memory Layer for AI Applications. Moves RAG intelligence (RRF, MMR, PII...	23	Experimental	1	JavaScript
55	Lithium2012/MineContext 🛠️ Simplify your tasks with MineContext, an open-source AI tool that...	23	Experimental	1	Python
56	rinfa0108/openbrain OpenBrain is an open-source machine-readable memory layer for agentic...	23	Experimental	1	Rust
57	Sachin5464/reasonkit-mem 🚀 Build memory and retrieval infrastructure for ReasonKit, enhancing data...	23	Experimental	1	Rust
58	ankitmalik84/Agentic_Longterm_Memory Sophisticated AI chatbot with long-term memory capabilities, complete Notion...	23	Experimental	3	Python
59	biofers/braimory Self-hosted semantic memory for AI assistants via MCP. Vector search,...	23	Experimental	1	TypeScript
60	badalraj9/MemoryThread Truth-aware cognitive memory system for AI agents	23	Experimental	1	Python
61	omarnagy91/mnemonic 🧠 Self-hosted AI memory for OpenClaw agents. Supermemory alternative,...	23	Experimental	1	Python
62	wheevu/episodic-memory-pipeline Gives local AI agents long-term memory by separating what they experience...	23	Experimental	1	Python
63	Pomilon/Mnemonic A semantic meta-search engine and synthesis workstation featuring...	23	Experimental	1	HTML
64	AyushSonuu/memharness Framework-agnostic memory infrastructure for AI agents — 8 memory types,...	22	Experimental	—	Python
65	ryanlingo/dynamic-context-evolution Dynamic Context Evolution (DCE): Scalable synthetic data generation from a...	22	Experimental	—	Python
66	gkanellopoulos/mnemefusion Unified memory engine for AI applications — "SQLite for AI memory."...	22	Experimental	—	Rust
67	npow/memshield Stop memory poisoning attacks on your AI agents	22	Experimental	—	Python
68	engram-os/engram-os An AI OS architecture emphasizing edge computing with privacy-by-design principles.	22	Experimental	—	Python
69	cr-nattress/neural-process-model 🧠 Cognitive Systems Analogy Lab: Translating brain functions into modular AI...	22	Experimental	4	—
70	raghuram369/synapse The privacy-first memory engine for AI agents. Setup wizard, per-user...	22	Experimental	1	Python
71	mnemebrain/mnemebrain-rust Rust SDK for MnemeBrain — a belief memory system for AI agents. Supports...	22	Experimental	—	Rust
72	sakhama/memfuse MemFuse offers a robust memory layer for large language models, enhancing...	22	Experimental	—	Python
73	Aurorasylvani/memo-brain 🧠 Enhance AI memory with Memo, allowing your coding assistant to remember...	22	Experimental	—	Rust
74	staffardinsoluble415/ai-context-master Enable AI agents to retain context, access accurate API docs, and manage...	22	Experimental	—	JavaScript
75	leo2007960216/deeprecall 🔍 Enable recursive data reasoning with DeepRecall by integrating vector...	22	Experimental	—	Python
76	OnlyinOhio234/MemoryRaven 🪶 Capture and explore digital consciousness with MemoryRaven, a powerful...	22	Experimental	—	Python
77	ajitpratap0/openclaw-cortex Persistent, semantically searchable memory for AI agents	22	Experimental	—	Go
78	blackboxprogramming/remember Remember — AI-powered persistent memory system for developers. Vector...	22	Experimental	—	Python
79	shiro1707778/episodic-memory-pipeline 🧠 Build a cognitive architecture for AI that mimics human memory, separating...	22	Experimental	—	Python
80	eastythenob8-svg/graph-memory Manage and compress long conversation histories into structured knowledge...	22	Experimental	—	TypeScript
81	Calvinxc1/vector-graph-memory Hybrid vector-graph memory backend for AI agents with semantic search,...	22	Experimental	—	Python
82	flaggdavid-source/amarin-memory Persistent, adaptive memory for AI agents — semantic search, temporal decay,...	22	Experimental	—	Python
83	andrewginns/mcp-mind-palace Persistent, searchable knowledge base for Large Language Models	21	Experimental	5	Python
84	engrama-labs/engrama Open-source long-term memory infrastructure for AI agents. Self-hostable....	21	Experimental	2	TypeScript
85	AIkaptan/Mnemora A local-first, privacy-focused personal context engine that lets you chat...	21	Experimental	—	JavaScript
86	M4cs/ctxovrflw-client Universal AI context & memory layer. Shared memory for every AI agent via MCP.	20	Experimental	1	Rust
87	wjy9902/memvault Production-ready long-term memory server for AI agents. Built on memU with...	20	Experimental	1	Python
88	mabo-du/SOMA Shared Open Memory Architecture — a federated memory protocol for AI agents	20	Experimental	1	Python
89	xwj-vic/AI-Memory A biomimetic memory server for AI Agents implementing human-like STM/LTM...	20	Experimental	9	Go
90	MemoryRaven/MemoryRaven 🧠 Advanced AI memory and knowledge management system powered by $RAVEN	20	Experimental	1	Python
91	mlnjsh/context-engineering 🧠 The Complete Guide to Context Engineering — Research Papers, Blogs,...	20	Experimental	1	—
92	0x000NULL/vex-memory A human-inspired memory system for AI agents	20	Experimental	1	Python
93	danilop/semstash Unlimited semantic storage for humans and AI agents	20	Experimental	9	Python
94	vvezre/Mem Hybrid memory skill for assistants with SQLite, FTS5, and Chroma for...	20	Experimental	1	—
95	compemperor/engram Memory traces for AI agents - Self-improving memory system with quality...	19	Experimental	—	Python
96	heyloo-cheng/openclaw-memory-system Complete memory system implementation for OpenClaw - 3-layer memory model...	19	Experimental	—	Shell
97	ashankgupta/echomind A second brain that lets you store, search, and reflect on your thoughts...	19	Experimental	—	Python
98	SainathPattipati/agent-memory-system Long-term memory architecture for AI agents: episodic, semantic, and...	19	Experimental	—	Python
99	default741/monday-kernel A polyglot (Rust/Python/C#) local intelligence engine that bridges the gap...	19	Experimental	—	Python
100	Ucotron/ucotron Cognitive memory framework for LLMs — graph + vector storage, LazyGraphRAG,...	19	Experimental	—	Rust
101	Lumi-node/ARMS ARMS: A Spatial Memory Fabric for AI Systems. Position IS relationship....	19	Experimental	—	Rust
102	vakharwalad23/MnemoGraph A human-like memory system combining vectors with graph-based relationship inference.	18	Experimental	3	Python
103	Irina1920/WMB-100K WMB-100K — The first 100,000-turn benchmark for AI memory systems	18	Experimental	6	Rust
104	IASolutionOrg/Cortex 🧠 Universal long-term memory for AI agents. GraphRAG-powered knowledge base...	18	Experimental	3	Python
105	themreza/Metacontext Metacontext is an AI-native, multi-agent system that centralizes knowledge...	17	Experimental	2	—
106	CARBANOID/Digi-Brain DigiBrain is a second brain web platform that stores links (tweets, YouTube...	16	Experimental	1	TypeScript
107	OctavianTocan/mem0-api A production-ready FastAPI service for semantic memory management using...	16	Experimental	1	Python
108	Dakkshin/kernalmemory FAAPS/Memory layer for Applications	16	Experimental	1	Python
109	MCPVOT/vot1 VOT1: Advanced Autonomous Intelligence System with memory management, OWL...	16	Experimental	1	Python
110	brian95240-ai-workspace/universal-living-memory Standalone, hardware-agnostic, zero-cost AI memory orchestrator	16	Experimental	1	Python
111	solonai-com/grantai Deterministic Memory for AI — Local, Private, Secure	16	Experimental	—	—
112	thiruthamil/MindEcho MindEcho — A privacy-first journaling and reflection app built with FastAPI,...	15	Experimental	—	Python
113	Pinnacore-AI/ajatus-memory AjatusMemory - Vector memory and learning profile system. Uses pgvector and...	15	Experimental	—	Python
114	Matrixxboy/SynthCerebrum SynthCerebrum is a fully offline, AI-powered assistant that reads and learns...	15	Experimental	—	TypeScript
115	liv-skeete/ai-memory-architecture Sophisticated memory system for AI assistants with hybrid vector-LLM...	15	Experimental	—	Python
116	koladilip/hierarchical-context-ai-agent Multi-turn AI agent with intelligent context management that solves context...	15	Experimental	—	TypeScript
117	aperswal/SpongeMemory Memory infrastructure for AI agents that learns from retrieval. Every search...	15	Experimental	—	Rust
118	sjy-dv/mind-x Mind-X is my intelligent alter ego that understands me the best. It assists...	14	Experimental	9	Go
119	Himanshu-2678/memoria A Persistent Memory System for AI Agents using Endee Vector Database	14	Experimental	—	HTML
120	BeckettFrey/mcp-cabinets Modular knowledge bank for storing, organizing, and retrieving context-rich...	14	Experimental	—	Python
121	adamsandler123/ABMemory 🧠 Elevate AI with ABMemory, a robust memory layer that offers adaptive...	14	Experimental	—	Python
122	Ekaterinaacid284/memory-lancedb-pro-skill Provide Claude Code with expert guidance to install, configure, and optimize...	14	Experimental	—	—
123	Kimosabey/neuro-vault Self-Optimizing GraphRAG and Multi-Modal Memory Engine utilizing Neo4j and...	14	Experimental	—	—
124	KayseanWasHereOnce/mnemosyneManohar 📝 Preserve human memories and wisdom with Mnemosyne, a digital archive that...	14	Experimental	—	JavaScript
125	esmatcm/openclaw-memory-lancedb-pro-skill OpenClaw Memory LanceDB Pro 安装配置 Skill｜AgentSkill for installing, enabling,...	14	Experimental	—	—
126	pangxianggang/openclaw-workspace 🦞 OpenClaw AI Agent Workspace — Complete configuration, memory system, skill...	14	Experimental	—	—
127	FrThierry09/Criticity-Weighted-Memory-Regulation “A proposal for stabilizing long-running LLM agents using criticity-weighted...	14	Experimental	—	HTML
128	BryanChasko/HeraldStack A context-aware, emotionally adaptive AI framework with memory, entity...	14	Experimental	—	Rust
129	bianningtao/ABMemory Production-ready Memory Layer for AI Applications -...	13	Experimental	2	Python
130	Acid-OP/second-brain-backend A personal “second brain" where you can save any link, share your brain with...	12	Experimental	1	TypeScript
131	Mdx2025/-BrainX-The-First-Brain-for-OpenClaw 🧠 The First Brain for OpenClaw — Persistent vector memory for AI agents....	12	Experimental	1	JavaScript
132	Acid-OP/second-brain-frontend A personal “second brain" where you can save any link, share your brain with...	12	Experimental	1	TypeScript
133	azizmabrouk11/NeuroMem NeuroMem is a production-ready memory system for AI agents that mimics human...	12	Experimental	1	Python
134	Aswath25S/backup_brain Comparative study of LLM-based knowledge graphs vs. vector DBs for personal...	11	Experimental	—	Jupyter Notebook
135	orion1139/ebrain Persistent External Brain for AI Coding Agents. 6 memory tiers, sub-100ms...	11	Experimental	—	—
136	govindup63/second-brain-backend Second Brain API: A backend service for managing, searching, and sharing...	11	Experimental	—	TypeScript
137	marc-shade/enhanced-memory-mcp A high-performance memory management system for AI agents using SQLite with...	11	Experimental	—	Python
138	sblanchard/SerialMemoryServer Model Context Protocol (MCP) server with temporal knowledge graph memory...	11	Experimental	—	C#
139	krupesh-app/clawmemory-openclaw ClawMemory plugin for OpenClaw - cloud-based semantic memory for AI agents	11	Experimental	—	TypeScript
140	erniulure/mem0-memory-system 🧠 AI-powered memory management system with multi-user support, Docker...	11	Experimental	—	Python
141	dorianlgs/langgraph-mem0 LangGraph + Mem0 integration demo showcasing an AI agent with persistent...	11	Experimental	—	Python
142	vel5id/mnemosyne A local-first, multimodal activity tracker that builds a user knowledge...	11	Experimental	—	Python
143	Renatoelho/ContextDB Vou mostrar como desenvolver um sistema para otimizar o uso de prompts em...	10	Experimental	1	Python

Comparisons in this category

cognee and memvid (80 vs 57) cognee and OpenMemory (80 vs 61) cognee and memlayer (80 vs 61) cognee and subcog (80 vs 43) OpenMemory and memlayer (61 vs 61) OpenMemory and persistent-ai-memory (61 vs 45) OpenMemory and cortexgraph (61 vs 42) OpenMemory and subcog (61 vs 43) OpenMemory and remembra (61 vs 53) automem and mcp-automem (58 vs 55)