LlamaIndex

LlamaIndex is an open-source Python framework for building agents and RAG apps over your own data. It loads, indexes and queries your documents with the LLM of your choice.

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LlamaIndex at a glance

From official pages, checked Nov 9, 2026. Tap the arrow for each source.

Official SDKs: Python
The TypeScript port (LlamaIndex.TS) is marked deprecated and no longer maintained, so only Python is listed.
Open source: Yes
The framework is MIT licensed on GitHub (run-llama/llama_index).

What you can build with LlamaIndex

LlamaIndexIntegrationConfig

Ask questions about your own documents with an agent

Index the files in a folder with LlamaIndex and let an OpenAI agent answer questions about them, in Python.

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LlamaIndex at a glance

What you can build with LlamaIndex

Ask questions about your own documents with an agent

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