Directory / Agent Development Kit
Agent Development Kit
Verified
Google open-source SDK for agents on the Gemini stack.
Google's Agent Development Kit is an open-source framework for building agents on Gemini, Vertex, and Agent Engine. The SDK has separate product surfaces from Jules and Gemini CLI.
- Model support
- Locked
- Deployment
- Cloud, Self-hosted
- Open source
- Yes
- License
- Apache-2.0
- Pricing model
- Free
- Added / updated
- 19 Aug 2026 / 19 Aug 2026
google.github.io/adk-docs/ · Docs · Source
Assessment
ADK targets teams standardizing on Gemini, Vertex, or Agent Engine. Apache-2.0 licensing leaves the model and platform lock intact. Sandbox execution sits outside the SDK.
Strengths
- Apache-2.0 SDK with Google integration.
- Vertex and Agent Engine deployment paths.
- Distinct product surface from Jules and Code Assist.
Limitations
- Gemini-centered despite an open repository.
- No coding harness.
- Agent Engine documentation and names can change.