LlamaIndex
Framework to build RAG applications connecting LLMs to your custom data and documents.
Agent, MCP and tool libraries PyPI MIT
How LlamaIndex is used
LlamaIndex is a dependency in 11 of the 6,208 public GitHub projects set up for AI coding agents that we scanned, too few to describe it from them alone. Our scan also samples projects by dependency (Solana 2,661, Ethereum and EVM 1,496, 3D and games 2,818, agent frameworks and SDKs 10,983); counting those, it appears in 332 projects, and what it is used with below comes from all of them. The most used alternative in our scan is LangChain (126 projects). Projects that use it most often also use python-dotenv (66.3%), OpenAI Python Library (64.5%), Pydantic (56.9%).
LlamaIndex popularity over time
Gid Score 63: downloads 60, use in agent projects 68, GitHub stars 78, downloads trend 37 (each 0-100). How it is calculated.
Often used with LlamaIndex
| python-dotenv | 66.3% of LlamaIndex projects · 7.2× more than average |
|---|---|
| OpenAI Python Library | 64.5% of LlamaIndex projects · 16.3× more than average |
| Pydantic | 56.9% of LlamaIndex projects · 6.6× more than average |
| pandas | 53.6% of LlamaIndex projects · 12.5× more than average |
| LangChain | 53.3% of LlamaIndex projects · 26.3× more than average |
| NumPy | 53.3% of LlamaIndex projects · 9.1× more than average |
| Requests | 49.7% of LlamaIndex projects · 7.3× more than average |
| tiktoken (Python) | 42.8% of LlamaIndex projects · 46.6× more than average |
From all 332 projects in our scan that use LlamaIndex, including the dependency samples.
By coding agent
| Claude Code | 0.2% of projects set up for it |
|---|---|
| GitHub Copilot | 0.2% of projects set up for it |
Share of public repos configured for each agent that list LlamaIndex as a dependency.
Agent Skills for LlamaIndex
| llamaindex from Orchestra-Research/AI-Research-SKILLs | Data framework for building LLM applications with RAG. Specializes in document ingestion (300+ connectors), indexing, and querying. Features vector indices, qu…npx skills add Orchestra-Research/AI-Research-SKILLs --skill llamaindex |
|---|
Skills teach your coding agent how to use LlamaIndex well. Official means the pack comes from the same GitHub account as LlamaIndex. Read a skill before installing it: it can include scripts. All Agent Skills
Install
| Package | pip install llama-index |
|---|---|
| Packages counted | llama-index, llama-index-core, llama-index-llms-openai, llama-index-embeddings-openai, llama-index-readers-file, llama-index-embeddings-huggingface, llama-index-indices-managed-llama-cloud, llama-index-cli |
| Main stacks | Python (329), Next.js (3) |
| Example projects | Mirix-AI/MIRIX, ANative-Lab/EvoAgentX, IPADS-SAI/MobiAgent, AlibabaCloudDocs/aliyun_acp_learning, onlyphantom/llm-python |
Alternatives to LlamaIndex
Tools that do the same job, so a project picks one or the other. Add-ons and libraries used alongside LlamaIndex are not listed here; they are in "Often used with".
| Tool | Gid Score | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|---|
| LangChain pypi Framework for composing applications with LLMs through chains and agents. |
88 | 126 (7.8%) | 37.3M | 148K | MIT |
| LangGraph pypi Framework for building stateful, multi-actor applications with LLMs. |
78 | 76 (4.7%) | 12.5M | 43.6K | MIT |
| Pydantic AI pypi AI agent framework built with Pydantic for structured, typed agent development. |
62 | 16 (1.0%) | 1.5M | 20.7K | MIT |
| LangGraph Checkpoint Postgres pypi PostgreSQL-backed checkpoint storage for LangGraph agent state persistence. |
65 | 11 (0.7%) | 2.8M | 43.6K | MIT |
| Browser Use pypi SDK for AI agents to interact with websites via browser automation. |
54 | 8 (0.5%) | 1.5M | — | MIT |
| CrewAI pypi Framework for orchestrating collaborative AI agents to solve complex autonomous tasks. |
62 | 3 (0.2%) | 669K | 59.9K | MIT |
| Semantic Kernel pypi Microsoft SDK for integrating LLMs with traditional code for AI applications. |
51 | 3 (0.2%) | 73.1K | 28.7K | MIT |
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