# Agent Development Kit (ADK) vs LlamaIndex

Source: https://listme.name/compare/google-adk-vs-llamaindex
Framed by the ranking: https://listme.name/best/ai-agent-tooling

| | Agent Development Kit (ADK) | LlamaIndex |
|---|---|---|
| Score | 85.5 | 88.0 |
| Rank | #5 | #3 |
| Price | Free and open source | Free and open source |
| Best for | Agents built in code and deployed to Google Cloud | Agents that work over documents and data |
| Language | Python, TypeScript, Go and Java | Not listed |
| Agent approach | Code-first agents with a web interface | Document-centric agents |
| Paid hosted service | Agent Runtime on Google Cloud | LlamaParse, separate |

Apache-2.0 code-first toolkit from Google with Python, TypeScript, Go and Java versions and a built-in web interface. Its deployment shortcuts point mainly to Google Cloud, so it fits teams already there. The strongest focus on documents and retrieval, with an MIT-licensed framework and a separate parsing service. It is narrower for general agent work than LangChain.