Are AI Agent Engrams Open Source or Proprietary? The short answer: both, and the split matters. The major agent-memory engines — Mem0, Letta, Cognee, Graphiti, LangMem, and PLUR — are all Apache-2.
Source: [Dev.to](https://dev.to/plur9/are-ai-agent-engrams-open-source-or-proprietary-58kh)