Cognee

Open-source memory engine for AI agents

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About Cognee

Cognee provides an open-source engine that turns raw data into a structured memory layer for agents. In everyday use, it combines vector search and knowledge graphs through ECL pipelines so agents recall relationships, not just chunks. It is aimed at builders who need agents that stay observable, controllable and useful once real users and real data are involved every day.

Cognee key facts

Category: AI Agents
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: memory, knowledge graph, open source
Official site: cognee.ai

About the AI Agents category

Autonomous AI agents that plan and execute tasks for you — general agents, AI browsers, AI employees, app builders, and coding agents. The AI Agents category on Tools Hub currently lists 156 tools. Alongside Cognee, it includes Langfuse, Helicone, Portkey, LiteLLM.

FreeAI Agentsmemoryknowledge-graphopen-source

More in AI Agents

Comparing tools in the AI Agents category? These related listings are worth a look: Langfuse — Open-source LLM observability and evaluation platform; Helicone — AI gateway and observability for LLM apps; Portkey — AI gateway for reliable production LLM apps.