AI Memory Systems
Letta
Letta is an AI operating system that enables developers to create production-ready stateful agents with persistent memory and infinite context through a single API call.
18,600 stars
Last commit Oct 1, 2025apache-2.0
Epicenter
An ecosystem of open-source, local-first apps that store all your data in plain text and SQLite, giving you complete ownership and control over your personal workspace.
3,353 stars
Last commit Oct 1, 2025mit