Google Agent Development Kit (ADK)

Open-source toolkit for building and evaluating Gemini-powered agents and workflows.

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Best for

•Teams building Gemini-based multi-step agent workflows.

Limitations

•Requires engineering effort for production-grade observability and governance.
•Feature surface evolves quickly; pin versions in production.

Use carefully when

•Organizations needing fully managed zero-code automation.

Quickstart

Prototype with local tools first, then add external API integrations incrementally.

Setup checklist

• API key required: Yes
• SDK quality: medium
• Self-host difficulty: medium

Usage Notes

• Validate model behavior on your own benchmark slices before rollout.
• Pin version/provider routes for reproducible outputs.
• Add logging + fallback routes for high-volume workloads.

Pricing (INR)

Input / 1M

Output / 1M

Monthly

₹0

Capabilities

toolCallingYes
multiAgentPatternsYes
evalSupportYes
deploymentAdaptersYes

Benchmarks

github Stars

17950

github Forks

2968

active Maintainer Signal

Community reviews

1 reviews • avg 4

Good agent baseline

4/5

ADK is solid for Gemini-first agents, but we needed custom observability.

Samples

codeADK flow

intent router -> retriever -> planner -> executor

Compliance

License: apache-2.0
Commercial use: allowed

Provenance

Last verified: 17/4/2026
Source: https://google.github.io/adk-docs/