Awesome AI Agent Stack

Memory & Persistent Context

Agents forget between sessions unless you give them somewhere to remember.

Memory layers & frameworks

• mem0ai/mem0 - Drop-in memory layer for agents and apps.
• letta-ai/letta - Stateful agents with self-editing memory (formerly MemGPT).
• getzep/graphiti - Temporal knowledge graphs for agent memory.
• topoteretes/cognee - Memory built from knowledge graphs plus vector search.
• supermemoryai/supermemory - Memory and context engine + app that is extremely fast, scalable, and can be run fully locally. The Memory API for the AI era.
• MemTensor/MemOS - Self-evolving memory OS for LLM & AI Agents: ultra-persistent memory, hybrid-retrieval, and.
• volcengine/OpenViking - Self-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.
• TencentCloud/TencentDB-Agent-Memory - TencentDB Agent Memory is a team-level memory hub for AI Agents — turning conversations, docs.
• memodb-io/memobase - User Profile-Based Long-Term Memory for AI Chatbot Applications.
• MemPalace/mempalace - The best-benchmarked open-source AI memory system. And it's free.
• getzep/zep - Zep | Examples, Integrations, & More.
• MemMachine/MemMachine - Open-source long-term memory layer for AI agents with MCP server support.
• langchain-ai/langmem - Long-term memory SDK for agents.
• memvid/memvid - Single-file memory layer for AI agents in Rust with ultra-low-latency recall.
• vectorize-io/hindsight - Hindsight: agent memory that learns from outcomes.
• MemoriLabs/Memori - Agent-native memory infrastructure: an LLM-agnostic memory layer.
• NevaMind-AI/memU - Personal memory across agents.
• EverMind-AI/EverOS - One portable, local-first memory layer for every AI agent.
• plastic-labs/honcho - Memory library for building stateful agents.
• aiming-lab/SimpleMem - [ICML'26] SimpleMem: efficient lifelong memory for LLM agents.
• memodb-io/Acontext - Agent Skills as a Memory Layer.
• BAI-LAB/MemoryOS - [EMNLP 2025] MemoryOS: a memory operating system for personalized AI.
• kayba-ai/agentic-context-engine - Make your agents learn from experience.
• import-ai/omnibox - Anywhere, anything to memory, memory to anything.
• ClaudioDrews/memory-os - A 7-layer memory operating system for persistent agent memory.
• kitfunso/hippo-memory - Biologically-inspired memory for AI agents with decay and retrieval strength.
• agiresearch/A-mem - A-MEM: Agentic Memory for LLM Agents.
• FjgarciaMac/AIrecall - Drop-in long-term memory layer for AI agents: episodic plus semantic.
• Siddhant-K-code/distill - Context intelligence layer for LLM agents with persistent memory.
• kael-bit/engram-rs - Memory engine for AI agents with a 3-layer time-decay axis.
• spectrayan/spector - Memory backbone for AI agents: four-tier working, episodic, semantic store.
• Kyros-494/kyros-ai - Kyros: the memory OS for AI agents, secure and self-hosted.
• zensation-ai/zenbrain - Agent memory for LLM agents with 7 neuroscience-inspired layers.
• dog-last/E-mem - [ICML 2026] E-mem: multi-agent episodic context reconstruction.
• alibaizhanov/mengram - Human-like memory for AI agents: semantic, episodic, and procedural.
• memseekai/memseek - Open source declarative context engine for AI agents.
• moorcheh-ai/memanto - Memory layer for AI agents.
• Mirix-AI/MIRIX - Multi-agent personal assistant with long-term memory of on-screen activity.
• FlowElement-xinliuyuansu/m_flow - Bio-inspired cognitive memory engine for graph RAG.
• LycheeMem/LycheeMem - Lightweight long-term memory for LLM agents.
• neo4j-labs/agent-memory - Graph-native memory system for AI agents backed by Neo4j.
• tigerless-labs/agent-memory - Long-term agent memory runtime with Markdown as the source of truth.
• yuzi001a/hippocampus-memory - Local-first, source-preserving long-term memory runtime for agents.

Memory for coding agents

• lucasrosati/claude-code-memory-setup - Obsidian plus Graphify persistent memory setup for Claude Code.
• thedotmack/claude-mem - Persistent cross-session context for Claude Code and other agents.
• rohitg00/agentmemory - Persistent memory for coding agents, benchmarked on real workloads.
• CaviraOSS/LongMemory - Local persistent memory store for LLM applications including claude desktop, github copilot, codex, antigravity, etc.
• akitaonrails/ai-memory - Long-term memory for agent coding CLIs with cross-vendor handoff.
• campfirein/byterover-cli - ByteRover CLI: the portable memory layer for autonomous coding agents.
• mex-memory/mex - Team memory for engineers and their AI agents, living in your repo.
• tickernelz/opencode-mem - OpenCode plugin giving coding agents persistent memory locally.
• 0xK3vin/MegaMemory - Persistent project knowledge graph for coding agents via MCP.
• jaredrhod/ai-memory-vault - Give your AI a real, persistent memory.
• okf-memory/okf-agent-memory - Git-native persistent memory for AI coding agents.
• DragonShadows1978/AI-AfterImage - Episodic memory for AI coding agents: recall of code and decisions.
• dvquy13/qrec - Session recall engine: persistent daemon with BM25 plus vector hybrid.
• zilliztech/memsearch - Persistent unified memory layer shared across Claude Code, Codex and other agents.
• vshulcz/deja-vu - Searchable session history memory for coding agents.
• cytostack/openwolf - Portable project memory across Claude Code, Codex and OpenCode with token accounting.
• cortexkit/magic-context - Self-managing memory and unbounded context for coding agent sessions.
• omega-memory/omega-memory - Persistent memory for AI coding agents.
• Gentleman-Programming/engram - Agent-agnostic persistent memory for coding agents with SQLite and an MCP server.

Memory MCP servers

• Dataojitori/nocturne_memory - Lightweight, rollbackable, visual long-term memory server for MCP.
• C-Bjorn/MegaMem - Transform your Obsidian vault into a knowledge graph served over MCP.
• LeandroPG19/Memorys - Persistent memory MCP server for AI agents in Rust with 19 tools.
• PlateerLab/synaptic-memory - Knowledge graph plus MCP tool server for LLM agents with hybrid retrieval.
• doobidoo/mcp-memory-service - Persistent memory for agent pipelines and Claude, served over MCP.
• Janadasroor/pg-mnemosyne-mcp - PostgreSQL-backed MCP server for agent memory, task tracking, and coordination.

Knowledge & code graphs

• Graphify-Labs/graphify - Turn a codebase plus its docs, schemas and PDFs into a queryable graph.
• Egonex-AI/Understand-Anything - Interactive knowledge graphs from any code.
• tirth8205/code-review-graph - Local-first code-intelligence graph so agents read only what matters.
• colbymchenry/codegraph - Pre-indexed code knowledge graph, auto syncs on code changes, for Claude Code, Codex, Gemini.
• andrewyng/context-hub - Shared context hub for agents.
• garrytan/gbrain - Self-wiring knowledge graph brain for AI agents with hybrid search.
• 2aronS/agent-git - Git-based knowledge management system for AI agents.
• neo4j-labs/meta-knowledge-graph - Self-improving, harness-agnostic memory layer for AI agents on Neo4j.
• memgraph/memgraph - Real-time graph database with Cypher.
• DeusData/codebase-memory-mcp - Code intelligence MCP server that indexes codebases into a persistent graph.
• Ar9av/obsidian-wiki - Framework for agents to build and maintain an Obsidian wiki as a digital brain.

Benchmarks & papers

• TeleAI-UAGI/Awesome-Agent-Memory - Systems, benchmarks and papers on agent memory.
• AutoTrustAI/PaperGuru-Benchmark - Lifecycle-aware memory benchmark for long-horizon LLM agents.
• InternLM/EMemBench - [EMNLP 2026] EMemBench: interactive episodic memory benchmark.

Graph databases

• neo4j/neo4j - Graph database for connected data.
• arangodb/arangodb - Multi-model NoSQL database for graphs and documents.
• dgraph-io/dgraph - Distributed GraphQL-native graph database.
• JanusGraph/janusgraph - Distributed graph database on Cassandra and HBase.
• vesoft-inc/nebula - Distributed graph database for large graphs.
• FalkorDB/FalkorDB - Super-fast graph database built on GraphBLAS for sparse graph operations.
• HelixDB/helix-db - HelixDB: OLTP graph database with native vector and full-text search.
• orneryd/NornicDB - Distributed low-latency Graph+Vector database with temporal MVCC.
• jeffhajewski/latticedb - Embedded single-file knowledge graph database with vector search.
• arun1729/cog - Embedded graph database for Python living inside your process.

Storage backends

• surrealdb/surrealdb - Multi-model cloud database in Rust.
• redis/redis - In-memory data store for cache and state.
• valkey-io/valkey - Open-source Redis fork for in-memory data.
• dragonflydb/dragonfly - Drop-in Redis replacement built for scale.
• etcd-io/etcd - Distributed key-value store for configuration.
• apache/zookeeper - Coordination service for distributed systems.
• spacejam/sled - Embedded database in Rust.
• skytable/skytable - NoSQL database with a focus on simplicity.
• tikv/tikv - Distributed transactional key-value database.
• vitessio/vitess - Database clustering for horizontal MySQL scaling.
• cockroachdb/cockroach - Distributed SQL database that scales.
• apache/cassandra - Distributed NoSQL wide-column store.