Letta (MemGPT)
Stateful agents with self-editing tiered memory, from the MemGPT research.
Visit Letta (MemGPT) →Related Memory tools
- Mem0 — Memory layer that extracts and retrieves user/agent facts across sessions.
- Zep / Graphiti — Temporal knowledge graph for agent memory that tracks how facts change over time.
- LangMem — LangChain library for long-term memory extraction and prompt optimization in agents.
- Cognee — Builds knowledge graphs plus vectors from your data as agent memory.
- MCP Memory server — Reference knowledge-graph memory server any MCP client can use.
- Anthropic memory tool — Claude API tool for storing and retrieving information in a file directory across conversa
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