cognee

The agent that grows with you.

Nous Research's self-improving personal agent: a learning loop turns experience into reusable skills, builds a persistent user model across sessions, and checkpoints state to disk with rollback — lean enough for a $5 VPS and driven from the chat apps you already use.

Turn websites into clean markdown for LLMs and agents.

Firecrawl crawls, scrapes and converts entire sites into LLM-ready markdown with structure — the go-to ingestion primitive for agent context pipelines.

The most widely used framework for LLM-powered applications.

LangChain provides chains, tool abstractions, integrations and runnables for composing LLM applications. It became the default on-ramp for agent development and remains among the most-starred projects in the space.