Letta ADE

Letta ADE (Agent Development Environment) is the visual command center for building, testing, and debugging stateful AI agents with persistent long-term memory.

Letta ADE (Agent Development Environment) is the comprehensive, graphical toolkit for the open-source Letta AI platform, which specializes in stateful agents. The ADE gives developers full transparency: You can see inside your agent's context window (memory, state, tools) and debug its reasoning in real-time. This environment, originating from the Sky Computing Lab at UC Berkeley, accelerates the development cycle, moving agents from rapid prototype to scalable production with features like direct memory editing and model-agnostic integration.

https://letta.com