MongoDB as the Brain of Modern AI Applications

Production agents need two persistence layers: thread-scoped state and cross-session memory. Google ADK Sessions stores events and state for a single conversation, while MemoryService handles recall across sessions. LangGraph memory makes the same split with a checkpointer for short-term memory and a store for long-term memory, and LangChain long-term memory builds on LangGraph stores that persist JSON documents by namespace and key. The memory architecture has already converged. Durable memory...