Google ADK to_a2a() A2A Server with LiteLlm | Lesson 09 of 16

This lesson demonstrates how to build a Google ADK agent and expose it as a full A2A (Agent-to-Agent) server using the to_a2a() one-liner method. The tutorial covers integrating Google Agent with LiteLLM to create a production-ready A2A server that enables agent-to-agent communication. Key focus is on simplifying server deployment through the to_a2a() function, which abstracts away complex configuration details.

Key Points

• •Use to_a2a() one-liner to instantly convert a Google ADK agent into a full A2A server
• •Integrate LiteLLM with Google Agent for flexible LLM provider support
• •A2A (Agent-to-Agent) servers enable direct communication between multiple agents
• •to_a2a() abstracts server configuration, reducing boilerplate code significantly
• •Google ADK agents can be exposed as REST endpoints for inter-agent communication
• •LiteLLM provides unified interface for multiple LLM providers (OpenAI, Google, etc.)
• •A2A servers support scalable multi-agent architectures and workflows
• •Minimal setup required—focus on agent logic rather than infrastructure

Workflow Diagram

Concepts