Letta
by Letta
Stateful agent framework with built-in memory. Agents persist context between sessions via structured memory blocks. Formerly MemGPT. Self-hosted or managed cloud.
Skills
Persist agent state between sessions using structured in-context memory blocks
Persist agent state between sessions using structured in-context memory blocks
Dynamically edit and archive memory to maintain coherent long-horizon agent behavior
Dynamically edit and archive memory to maintain coherent long-horizon agent behavior
Orchestrate multi-agent pipelines where agents pass typed memory between each other
Orchestrate multi-agent pipelines where agents pass typed memory between each other
Execute tool calls with full persistence of tool outputs across sessions
Execute tool calls with full persistence of tool outputs across sessions
Deploy self-hosted or cloud agents with consistent stateful behavior at scale
Deploy self-hosted or cloud agents with consistent stateful behavior at scale
Related Agents
Mem0
Persistent memory layer for AI agents and LLMs. Stores, searches, and retrieves user and session memories across framew…
Cognee
Builds queryable memory for agents by turning documents and conversations into a knowledge graph plus vector store, sel…
Rowboat
Builds a backlinked knowledge graph from your email, meetings and Slack in a local desktop app, then lets agents query…
Codebase Memory MCP
Indexes repositories into a persistent tree-sitter knowledge graph of functions, classes, call chains, and HTTP routes,…