Open source agent-memory projects

Every project in the registry tagged agent-memory, ranked by real GitHub adoption.

projects 7 combined stars ★ 112K refresh nightly
01 TiDB ★ 41K

Scale-out SQL database for real-time analytics

last push3 hours ago languageGo licenseApache-2.0
02 cognee ★ 31K

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engi

last push4 hours ago languagePython licenseApache-2.0
03 dolt ★ 24K

Dolt – Git for Data

last push6 hours ago languageGo licenseApache-2.0
04 utopia ★ 8.0K

World's first open-source enterprise world model.

last push4 hours ago languageRust licenseApache-2.0
05 m_flow ★ 4.5K

A bio-inspired cognitive memory engine — a new paradigm for Graph RAG.

last push16 days ago languagePython licenseApache-2.0
06 Letta ★ 3.4K

Stateful AI agents that remember, learn, and improve over time

last push3 hours ago languageTypeScript licenseApache-2.0
07 AgentOS ★ 667

TypeScript framework for building autonomous AI agents

last push6 days ago languageTypeScript licenseApache-2.0

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Frequently asked questions

How many open source agent-memory projects are there?

This registry tracks 7 projects tagged agent-memory, with 112,292 GitHub stars between them. The most-adopted is TiDB at 40,541 stars.

Are these agent-memory projects free to use?

Yes — 7 of the 7 carry an explicit open-source licence across 1 distinct licence, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which agent-memory project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these agent-memory projects still maintained?

7 of the 7 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.