This project demonstrates the implementation of an Agent-to-Agent (A2A) protocol using Kotlin and the a2ajava library. The A2A protocol enables communication and task delegation between software agents, making it easier to build distributed AI-powered applications.

The Agent-to-Agent (A2A) protocol is a standardized way for software agents to communicate and delegate tasks to each other. Key features include:

• Standardized Communication: Agents can communicate using a common protocol regardless of their implementation
• Task Delegation: Agents can delegate tasks to other agents based on their capabilities
• Asynchronous Operation: Support for both synchronous and asynchronous task execution
• Extensible Architecture: Easy to add new agents and capabilities to the system

This project includes:

• WeatherAgent: A sample agent that provides weather information
• RoutePlanner: A sample agent that provides route planning services
• Spring Boot integration for running the agent service
• Local and remote client support for agent communication

You can start the server with main.kt and then connect your client using the url localhost:8080 , the agent card will be avaiable at http://localhost:8080/.well-known/agent.json

@Agent(groupName = "Weather Service", groupDescription = "Provides current weather info")
open class WeatherAgent {
    @Action(description = "Get temperature for a given city")
    fun getTemperature(city: String): String {
        return "The current temperature in $city is 25°C"
    }
}

@SpringBootApplication
class A2AKotlinApp

fun main(args: Array<String>) {
    runApplication<A2AKotlinApp>(*args)
    var client = LocalA2ATaskClient()
    var response = client.sendTask("hows the weather in London")
    println("Response: $response")
}

The project supports two types of clients:

1. Local Client: Used for testing and development, runs agents in the same JVM

   var client = LocalA2ATaskClient()

2. Remote Client: Connects to remote agent servers

   var client = RemoteA2ATaskClient("http://server-url")

1. Clone the repository
2. Build using Gradle:

   ./gradlew build

3. Run the application:

   ./gradlew bootRun

• Spring Boot 3.2.5
• a2ajava 0.0.7.9
• Kotlin 2.1.0
• JDK 23

This project is licensed under the MIT License - see the LICENSE file for details.