Module 8: A2A Protocol
A2A protocol, Expose, Consume, Cross-language
4 posts
Module 8: A2A Protocol
How do Agents communicate with each other? A2A (Agent to Agent) protocol deep dive, covering Expose/Consume patterns and cross-language collaboration.
Articles
| # | Article | Case | Status |
|---|---|---|---|
| 1 | A2A Protocol: Cross-Agent Communication | adk-go-a2a-intro | 🔄 In Progress |
| 2 | Exposing: Expose Go Agent to External | adk-go-a2a-expose | 🔄 In Progress |
| 3 | Consuming: Consume External Agent | adk-go-a2a-consume | 🔄 In Progress |
| 4 | Cross-Language Collaboration: Python + Go | adk-go-a2a-cross-language | 🔄 In Progress |
Prerequisites
- Completed Module 7: Deployment & Operations
- Understand basic Agent deployment
Learning Objectives
After completing this module, you will:
- Understand A2A protocol design and differences from MCP
- Master Expose and Consume usage patterns
- Implement Python + Go cross-language Agent collaboration
Learning Path
Complete these four articles in order before proceeding to the “Advanced Topics” module.
← Module 7: Deployment & Operations | Module 9: Advanced Topics →
Cross-Language Collaboration: Python + Go Agent Collaboration
Practical case showing how Python ADK Agent and Go ADK Agent collaborate via A2A protocol—task division, information transfer, result aggregation.
Consuming: Consume External Agent
Detailed explanation of how to call Agents exposed by other languages in Go Agent—connecting to external Agents via A2A Client.
Exposing: Expose Go Agent for External Calls
Detailed explanation of how to expose Go Agent to external systems via A2A protocol—service registration, endpoint exposure, auth configuration.
A2A Protocol: Universal Language for Cross-Agent Communication
Detailed explanation of A2A (Agent to Agent) protocol design, differences from MCP, and how to enable A2A support in ADK Go.
