cognee
Memory for AI Agents in 5 lines of code
cognee launched on April 11, 2025 with 382 votes, #56 of 7,818 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Cognee is an open-source semantic memory layer designed for AI agents that uses vector and graph databases to build knowledge graphs from retrieved data. It allows AI applications and agents to provide accurate, context-aware responses with minimal code integration. The tool is built as an SDK and targets developers creating AI-powered systems that need to maintain and access structured information efficiently.
written from the facts on this page · September 2026
From the sources
cognee is an open-source semantic memory layer for AI agents, built on vector and graph databases. It constructs knowledge graphs from retrieved data, enabling AI apps and agents to deliver accurate, context-aware responses.
Cognee is the open-source agent memory platform for LLM agents. Build persistent memory across sessions with graph, vector, and relational retrieval that runs self-hosted, in Docker, on-prem, or on Cognee Cloud.
Connect Slack , GitHub , Linear to Cognee and help agents recall what your company knows. The answer is spread across a doc, a ticket, and your Claude session, leaving your colleagues to redo work already done. Your agent is solving a task it already solved last week, wasting tokens and your time. Your organization runs on rules no model was trained on, so your agents invent their own. “ Knowledge graphs for representing information are unbeatable . I used cognee. ” “ Bookmark this immediately. cognee just solved the biggest problem with AI skills/prompts. Try not to fall behind. ” “ Build agents that never forget . Cognee is an open-source tool built for exactly this. ” “ Most AI agents…from cognee.ai
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Cognee – Open-Source AI Memory Layer That Remembers Context2025 · github.com · ▲9Hey HN! We're Vasilije, Laszlo and Lazar, the authors of a new paper and part of https://www.cognee.ai. cognee let’s you build memory layers for AI applications and agents, allowing them to personalize results, connect various data sources, and add custom rules. This enables AI apps to deliver increasingly accurate responses, we reached almost 90% on standard industry benchmarks as you can see here https://github.com/topoteretes/cognee/tree/main/evals and our paper can be accessed at: https://arxiv.org/abs/2505.24478 and collab…
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