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@letta-ai

Letta

Letta is an AI lab building machines that learn

Hello World 👾

Letta Logo

Letta is an AI lab building machines that learn: persistent agents with the ability to continuously learn and adapt from their own experience.

Try Letta Code, the memory-first agent:

npm install -g @letta-ai/letta-code

# then navigate to a project directory, and run `letta`
cd my-project
letta

Useful links:

Made with 💜 by our team in San Francisco (join us!) and over 100 individual contributors from around the world.

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  1. letta-code letta-code Public

    The memory-first coding agent

    TypeScript 2.7k 302

  2. letta-code-sdk letta-code-sdk Public

    The SDK interface to Letta Code. Build deeply personalized agents with persistent memory that learn over time.

    TypeScript 72 12

  3. lettabot lettabot Public archive

    Archived - has been replaced by Letta Code channels/schedules!

    TypeScript 328 84

  4. letta-oss-ui letta-oss-ui Public

    An open-source demo UI built on top of the Letta Code SDK

    TypeScript 76 16

  5. skills skills Public

    A shared repository for skills. Intended to be used with Letta Code, Claude Code, Codex CLI, and other agents that support skills.

    Python 113 21

  6. agent-file agent-file Public

    Agent File (.af): An open file format for serializing stateful AI agents with persistent memory and behavior. Share, checkpoint, and version control agents across compatible frameworks.

    TypeScript 1.2k 109

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