Memory & State
Persistent memory and state management layers for AI agents. These tools store, retrieve, and reason over long-term user context, conversation history, and knowledge across sessions. Without memory, every interaction starts from scratch — these agents give your AI continuity and personalization.
Letta
Stateful agent framework with built-in memory. Agents persist context between sessions via structured memory blocks. Fo…
Mem0
Persistent memory layer for AI agents and LLMs. Stores, searches, and retrieves user and session memories across framew…
Zep
Long-term memory store for AI assistants. Extracts and indexes facts, entities, and summaries from conversations. Fast…
Honcho
User state management platform for AI apps. Stores user context, preferences, and interaction history to enable persona…
Supermemory
Memory API for AI applications. Store and retrieve user memories, bookmarks, and knowledge with semantic search. One un…