text: Skip to main contentğŸ¦œï¸�ğŸ”— LangChainDocsUse casesIntegrationsAPILangSmithJS/TS DocsCTRLKIntegrationsCallbacksChat modelsDocument loadersDocument transformersLLMsMemoryCassandra Chat Message HistoryDynamodb Chat Message HistoryEntity Memory with SQLite storageMomento Chat Message HistoryMongodb Chat Message HistoryMotÃ¶rhead MemoryMotÃ¶rhead Memory (Managed)Postgres Chat Message HistoryRedis Chat Message HistoryZep MemoryRetrieversText embedding modelsAgent toolkitsToolsVector storesGrouped by providerIntegrationsMemoryMemoryğŸ“„ï¸� Cassandra Chat Message HistoryApache CassandraÂ® is a NoSQL, row-oriented, highly scalable and highly available database, well suited for storing large amounts of data.ğŸ“„ï¸� Dynamodb Chat Message HistoryThis notebook goes over how to use Dynamodb to store chat message history.ğŸ“„ï¸� Entity Memory with SQLite storageIn this walkthrough we'll create a simple conversation chain which uses ConversationEntityMemory backed by a SqliteEntityStore.ğŸ“„ï¸� Momento Chat Message HistoryThis notebook goes over how to use Momento Cache to store chat message history using the MomentoChatMessageHistory class. See the Momento docs for more detail on how to get set up with Momento.ğŸ“„ï¸� Mongodb Chat Message HistoryThis notebook goes over how to use Mongodb to store chat message history.ğŸ“„ï¸� MotÃ¶rhead MemoryMotÃ¶rhead is a memory server implemented in Rust. It automatically handles incremental summarization in the background and allows for stateless applications.ğŸ“„ï¸� MotÃ¶rhead Memory (Managed)MotÃ¶rhead is a memory server implemented in Rust. It automatically handles incremental summarization in the background and allows