Google Agent Development Kit adds Go language support

Google has added Go to the list of languages supported by the company’s Agent Development Kit (ADK), a modular framework for developing and deploying AI agents.

Introduced November 7, ADK for Go offers an idiomatic, performant way to build agents, said Toni Klopfenstein, a Google developer relations engineer for ADK for Go. Source code can be found on GitHub. Developers can use Go’s concurrency and strong typing to build robust, scalable agentic applications, Klopfenstein said. He described ADK for Go as an open-source, code-first toolkit for developers who need fine-grained control over AI agents. Go joins Java and Python as languages supported by the kit.

Key features cited for ADK for Go include the following:

Pre-built tools, custom functions, OpenAPI specs, and integration across the Google ecosystem.

Code-first development that allows developers to define agent logic, tools, and orchestration directly for flexibility, testability, and versioning.

The ability to design scalable applications by composing multiple specialized agents into flexible hierarchies.

A built-in development UI that lets users test, evaluate, debug, and showcase agents.

Support for the Agent2Agent (A2A) protocol, which allows a primary agent to orchestrate and delegate tasks to specialized sub-agents.

ADK moves the complexity of large language model orchestration, agent behavior, and tool use directly into code, providing developers with robust debugging, reliable versioning, and deployment freedom, Klopfenstein said.