Agent2Agent (A2A) Protocol.NET

This is a .NET implmentation of Google's Agent-to-Agent (A2A) Protocol.

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From Google's A2A Repo

An open protocol enabling communication and interoperability between opaque agentic applications.

The Agent2Agent (A2A) protocol addresses a critical challenge in the AI landscape: enabling gen AI agents, built on diverse frameworks by different companies running on separate servers, to communicate and collaborate effectively - as agents, not just as tools. A2A aims to provide a common language for agents, fostering a more interconnected, powerful, and innovative AI ecosystem.

With A2A, agents can:

• Discover each other's capabilities.
• Negotiate interaction modalities (text, forms, media).
• Securely collaborate on long running tasks.
• Operate without exposing their internal state, memory, or tools.

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The motivation of this project is to

• Enable an ASP.NET Core Application to create an A2A server just by using this SDK.
• Add more capabilities - multi agent hosting, enterprise grade features like observability etc.

Getting Started

For any ASP.NET Core Service, refer the the A2AProtocol.Server library (Nuget - TBD)

Add a configuration in your appsetting.json

"A2AConfiguration": {
    "AgentCardPath": "resource/AgentCard.json"
}

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddA2AServerModules();
builder.Services.AddSingleton<IA2AServer, A2AServer>();
var app = builder.Build();
app.HostServer(path: "your/own/path");
app.Run();

There is an A2AProtocol ASP.NET Core Application present in this repo (Don't take a dependency, as it may be removed in future, and moved to a sample directory)

Relevant Sources

• A2A Specification