Mem0
↗Persistent memory for agents that need to recall preferences and context across sessions.
19.9k search visits/moView profile ↗
Memory Agent native
Letta
A platform and SDK for building stateful agents with persistent memory and evolving context.
Product homepage · Captured October 14, 2026. View the page shown ↗
Why it belongs in the agent-first stack
Letta treats memory and agent state as continuing resources. Its agent harness and SDK help developers embed agents that retain context and learn from previous interactions.
An example in practice
A developer embeds a stateful assistant in an application so it can retain project context and continue a user's work in a later session.
Illustrative workflow. Permissions and approval steps depend on how the product is integrated.
More in memory
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Zep
↗A context layer that connects business data, documents, and conversations for agents.
6.83k search visits/moView profile ↗
Supermemory
↗A memory engine that brings relevant user and project knowledge into an agent's context.
2.84k search visits/moView profile ↗