What it does
LlamaIndex is an open-source framework for building AI apps and agents, especially ones that work with your own documents and data. It connects to hundreds of AI models, databases and other services through add-on packages.
The company behind it says its main focus is now LlamaParse, a separate paid platform for reading complex documents. The open framework remains available.
Who it's for
Python developers building AI apps that use their own data.
Can I use it without coding?
Developers only. A Python library that needs programming. New to this? Start here.
Can I run it?
- Cost
- FreeNothing to pay or sign up for.
- 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 (MIT): Very permissive: free to use, change and share, including for business.
- More on staying safe