User facts, task history, graph entities, and workflow state should be evaluated differently.
Open memory systems by recall model
Browse memory systems by what they store, how recall works, who controls the memory, and where the data can run.
Good memory retrieves the right context, explains why, and corrects stale information.
Memory needs scoping, deletion, export, and deployment choices because it stores sensitive context.
User and product memory
Memory layers for personalization, preferences, assistant continuity, and product-level recall.
ragflow
Open-source Retrieval-Augmented Generation engine that combines deep document understanding with agent capabilities.
Open source
CowAgent
Open-source AI assistant with multi-model support, task planning, tool execution, and persistent memory.
Open source
haystack
Open-source AI orchestration framework for building production-ready LLM applications with modular pipelines and RAG.
Open source
AgentMemory
Persistent memory for AI coding agents, with benchmarks and local-first workflows.
Open source
OpenLore
Persistent architectural memory for AI coding agents using queryable codebase knowledge graphs and MCP tools.
Open sourceMCP
Mnemo Cortex
Open-source memory coprocessor for AI agents with persistent recall, semantic search, and crash-safe capture.
Open source
Cognee
Open-source memory and data infrastructure for AI applications that need reliable context.
Open sourceSelf-hostedAPI
Graphiti
Temporal knowledge graph memory system for agents that need facts, entities, and time-aware context.
Open sourceSelf-hostedMCP
Letta
Platform for stateful agents with advanced memory, personalization, and learning over time.
Open sourceSelf-hostedAPI
Mem0
Open-source memory layer for AI agents and assistants that need personalized recall.
Open sourceSelf-hostedAPI
Memori
Open-source memory engine for LLM apps and agents that need persistent context injection.
Open sourceSelf-hostedAPI
Graph and knowledge memory
Systems that use graphs, RAG, retrieval, or knowledge structures to recall durable context.
ragflow
Open-source Retrieval-Augmented Generation engine that combines deep document understanding with agent capabilities.
Open source
haystack
Open-source AI orchestration framework for building production-ready LLM applications with modular pipelines and RAG.
Open source
OpenLore
Persistent architectural memory for AI coding agents using queryable codebase knowledge graphs and MCP tools.
Open sourceMCP
Mnemo Cortex
Open-source memory coprocessor for AI agents with persistent recall, semantic search, and crash-safe capture.
Open source
Cognee
Open-source memory and data infrastructure for AI applications that need reliable context.
Open sourceSelf-hostedAPI
Graphiti
Temporal knowledge graph memory system for agents that need facts, entities, and time-aware context.
Open sourceSelf-hostedMCP
Mem0
Open-source memory layer for AI agents and assistants that need personalized recall.
Open sourceSelf-hostedAPI
Memori
Open-source memory engine for LLM apps and agents that need persistent context injection.
Open sourceSelf-hostedAPI
Agent state and workflow memory
Memory used to preserve agent state, decisions, tool history, and long-running workflow context.
OpenLore
Persistent architectural memory for AI coding agents using queryable codebase knowledge graphs and MCP tools.
Open sourceMCP
Mnemo Cortex
Open-source memory coprocessor for AI agents with persistent recall, semantic search, and crash-safe capture.
Open source
Cognee
Open-source memory and data infrastructure for AI applications that need reliable context.
Open sourceSelf-hostedAPI
Graphiti
Temporal knowledge graph memory system for agents that need facts, entities, and time-aware context.
Open sourceSelf-hostedMCP
Letta
Platform for stateful agents with advanced memory, personalization, and learning over time.
Open sourceSelf-hostedAPI
Mem0
Open-source memory layer for AI agents and assistants that need personalized recall.
Open sourceSelf-hostedAPI
Memori
Open-source memory engine for LLM apps and agents that need persistent context injection.
Open sourceSelf-hostedAPI
Self-hosted memory infrastructure
Memory systems that can run closer to your data with APIs, local control, or self-hosted deployment.
Cognee
Open-source memory and data infrastructure for AI applications that need reliable context.
Open sourceSelf-hostedAPI
Graphiti
Temporal knowledge graph memory system for agents that need facts, entities, and time-aware context.
Open sourceSelf-hostedMCP
Letta
Platform for stateful agents with advanced memory, personalization, and learning over time.
Open sourceSelf-hostedAPI
Mem0
Open-source memory layer for AI agents and assistants that need personalized recall.
Open sourceSelf-hostedAPI
Memori
Open-source memory engine for LLM apps and agents that need persistent context injection.
Open sourceSelf-hostedAPI