Plain-AyI
← All projects
AI memory

Cognee

Gives AI agents a long-term memory built from your documents, code and conversations.

Research-backed

What it does

Cognee is an open-source "memory" system for AI agents. It reads documents, code and conversations and turns them into a knowledge graph, a map of facts and how they're connected, that an AI can search and reuse later.

This lets an agent remember past decisions, fixes and project context from one session to the next, or lets a team build a shared "company brain". Its makers say it can run locally for free using small models on your computer's processor, with no API key needed; adding an AI model gives written answers instead of just matching passages.

Developers can use it from Python, a command-line tool, plugins or an MCP connector, or use the makers' cloud service.

Who it's for

Developers building AI agents or company knowledge tools that need to remember information over time.

Can I use it without coding?

Developers only. Installed as a Python package and used from code or the command line. New to this? Start here.

Can I run it?

Cost
Free, with optional paid extrasThe open-source version is free; the makers also sell a hosted or pro version.
Computer
An ordinary computer is fine
Privacy
Your choice: run it on your device or use an online service
API key
Not needed

Try it

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page. Copies with similar names exist for many popular projects.
  • License (Apache-2.0): Permissive: free to use, change and share, including for business.
  • More on staying safe

Where people are talking about it