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

Official Python SDK for the Agent2Agent (A2A) Protocol

Samples using the Agent2Agent (A2A) Protocol

Agent2Agent (A2A) – awesome A2A agents, tools, servers & clients, all in one place.

Agent2Agent (A2A) – AgentCards, Servers, Clients, Docs

Official Java SDK for the Agent2Agent (A2A) Protocol

Golang SDK for A2A Protocol

A2A4J is a comprehensive Java implementation of the Agent2Agent Protocol, including server, client, examples, and starters.

An Agent Development Kit (ADK) allowing for seamless creation of A2A-compatible agents written in Go

MCP/A2A server for fitness app supporting Strava, Garmin and Fitbit

Azure-native A2A Technology Demonstrator

A2A Registry

Build and deploy an autonomous Devto Agent capable of interacting with the Dev.to platform, powered by A2A (Agent-to-Agent) and MCP (Model Context Protocol)

Talk to your starred github repositories

Use the Agent2Agent(A2A) protocol with any OpenAI API compatible endpoint.

이 샘플은 에이전트 개발 키트(ADK)를 사용하여 A2A 서버로 호스팅되는 간단한 "weather_time_agent" 에이전트를 만듭니다.

A libarary of template A2A projects

A multi-agent restaurant food ordering system using Semantic Kernel, A2A and Azure OpenAI. Includes a backend agent server, customer chat API, and sample UI for natural language food orders. MIT licensed and open for contributions.

A production-oriented, TypeScript multi-agent AI platform built on Google Genkit. The system composes Genkit flows, reusable tools, and independent A2A agents to support complex tasks such as research orchestration, code generation, and content editing.