Examples

The SDK repository ships complete, runnable example applications. Each one demonstrates a different part of the SDK surface:

Example	What it demonstrates
web-chat	A web UI for chatting with an agent — streaming to the browser
custom-tools	Client tools that execute locally in the SDK process while the agent runs in a cloud sandbox
bug-fixer	A persistent agent that finds and fixes bugs, remembering the codebase and past fixes across sessions
release-notes	Generating release notes from git commits while learning your formatting preferences over time
file-organizer	A persistent agent that organizes directories and remembers your organizational preferences
research-team	A multi-agent research system — persistent memory and collaborative agents that improve over time
focus-group	Simulating a political focus group with persistent AI personas to test messaging
economics-seminar	A multi-agent academic seminar simulation
dungeon-master	A persistent DM that creates its own game system and runs campaigns — persona and MemFS in action

Clone the repository and run any example from its directory:

git clone https://github.com/letta-ai/letta-agent-sdk
cd letta-agent-sdk/examples/web-chat
npm install

Each example directory contains its own entry point and, where needed, a README with setup instructions.

What to read next

• Quickstart — create your first agent from scratch
• Creating agents — memory, skills, and agent configuration
• MCP and client tools — the pattern the custom-tools example uses
• Shared memory — the coordination substrate for multi-agent examples