SkillsApr 1, 2026·1 min read

Letta — Stateful AI Agents with Memory

Letta builds stateful AI agents that learn and self-improve with advanced memory. 21.8K+ stars. CLI, Python/TS SDKs, skills, subagents. Apache 2.0.

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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

npm install -g @letta-ai/letta-code
# Or: pip install letta-client

Intro

Letta is the platform for building stateful AI agents with advanced memory that learn and self-improve over time. With 21,800+ GitHub stars and Apache 2.0 license, it provides a CLI, Python and TypeScript SDKs, skills and subagents support, and model-agnostic architecture.

Best for: Developers building AI agents that need persistent memory Works with: Claude Code, OpenAI Codex, Cursor, Gemini CLI, Windsurf


Key Features

  • Persistent memory across conversations
  • CLI + Python + TypeScript SDKs
  • Skills and subagents
  • Model-agnostic (Claude, GPT, open-source)
  • Web search built in

FAQ

Q: What is Letta? A: Letta builds stateful AI agents with 21.8K+ stars. Persistent memory, self-improvement. Apache 2.0.

Q: How do I install Letta? A: npm install -g @letta-ai/letta-code or pip install letta-client.


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Source & Thanks

letta-ai/letta — 21,800+ GitHub stars

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