Letta Developer Platform
Build stateful AI agents with persistent memory and self-editing capabilities
Use the Letta API to build stateful agents that remember, learn, and improve over time. Build frontier AI agents that maintain long-term memory and evolve based on their interactions.
Get started
Section titled “Get started” Quickstart Build your first agent in 5 minutes with Python or TypeScript.
Core concepts Understand memory blocks, tools, and how Letta agents maintain state.
Guides Step-by-step instructions for memory design, tools, multi-agent systems, and more.
Build, deploy, and scale
Section titled “Build, deploy, and scale” Examples & tutorials Working code examples for common use cases and agent patterns.
API reference Complete REST API and SDK documentation for Python and TypeScript.