Letta builds stateful AI agents with advanced memory and infinite context for scalable applications. Easily create, deploy, and manage agents via REST APIs with built-in persistence and tool integrations
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Letta is recommended for developers who want to build AI agents that learn and improve over time. It’s perfect for those needing stateful, model-agnostic agents with advanced memory, ready to integrate into apps via APIs and SDKs.
Letta offers three plans: a free plan with 5,000 monthly credits, 2 agent templates, and 1 GB storage for beginners; a Pro plan at $20/month with 20,000 monthly credits, unlimited agents, 20 templates, 10 GB storage, and pay-as-you-go overage for production use; and an Enterprise plan with custom, volume-based pricing for large organizations, including advanced security, dedicated support, and BYOK. Monthly credits are used for LLM requests and tool executions, and reset every month. No trial is available, but startup discounts can be requested.
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With Letta, sign up and obtain your API key to create and configure your AI agents using their developer platform and SDKs. Then, customize your agents’ memory blocks and integrate them as REST API endpoints into your applications for continuous learning and stateful interactions.
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