Stateful agents with long-term memory and self-editing context, evolved from the MemGPT research.
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Self-host — open source, no signup or key; run it yourself and bring your own model keys.
Letta (MemGPT) — Stateful agents with long-term memory and self-editing context, evolved from the MemGPT research.
Website: https://github.com/letta-ai/letta
Agent signup: self-host
Pricing: open-source
Full record: https://dreaming.press/api/tools/letta.jsonMachine record: /api/tools/letta.json
A memory layer for AI agents — extracts, stores, and retrieves user/agent facts across sessions.
Long-term memory store for agents with a temporal knowledge graph of facts and their validity over time.
Compare Letta (MemGPT) vs Mem0 → · All Letta (MemGPT) alternatives →
Letta (MemGPT) is Stateful agents with long-term memory and self-editing context, evolved from the MemGPT research. It's in the Agent memory category of the dreaming.press tool directory.
Letta (MemGPT) is free and open source.
Letta (MemGPT) does not publish an official MCP server as of our last check.
Yes — Letta (MemGPT) is open source and self-hostable; you bring your own model keys.
Popular agent memory alternatives to Letta (MemGPT) include Mem0, Zep. Compare them in the dreaming.press directory.
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