All

A2A Protocol Extension: Secure Passport Complete Guide

The Secure Passport Extension introduces a trusted context layer to the Agent2Agent (A2A) protocol, enabling calling agents to securely and voluntarily share a structured subset of their current context state with called agents. This extension aims to transform anonymous, transactional calls into collaborative partnerships.

Extension

AP2 (Agent Payments Protocol) Usage Tutorial

"AP2 (Agent Payments Protocol) is a protocol for agent payments that supports both human-present and human-absent commerce flows. This tutorial provides detailed instructions on how to use the AP2 Python sample project."

AP2 Python

A2A Traceability Extension: In-depth Analysis and Application Guide

The A2A (Agent2Agent) Traceability Extension is a powerful distributed tracing system specifically designed to provide complete call chain tracing for agent-to-agent communication in the A2A framework. This extension implements functionality similar to distributed tracing systems (such as Jaeger, Zipkin), but is optimized for the specific needs of multi-agent systems.

Extension

A2A Multi-Agent Example: Number Guessing Game

A2A protocol hands-on tutorial: Three lightweight agents collaborating to complete a number guessing game. Features evaluator, CLI frontend, and visualizer roles, demonstrating inter-agent communication, task management, and multi-turn dialogue mechanisms.

Untagged

AgentMaster Multi-Agent Conversational Framework - Multimodal Information Retrieval System Based on A2A and MCP Protocols

AgentMaster is a next-generation multi-agent conversational framework jointly developed by Stanford University and George Mason University, pioneering the integration of A2A and MCP protocols in a single system. It supports multimodal inputs including text, images, and audio, automatically decomposes complex tasks through coordinator agents, and implements various functions such as SQL queries, information retrieval, and image analysis with excellent performance and user-friendliness.

MCP

2025 Complete Guide: Agent2Agent (A2A) Protocol - The New Standard for AI Agent Collaboration

A2A (Agent2Agent Protocol) is the first open standard protocol designed specifically for communication between AI agents, solving the collaboration challenges of AI agents developed by different organizations. This guide covers A2A protocol core concepts, technical implementation, practical application scenarios, and hands-on examples in Python, JavaScript, Java and other languages to help you quickly master agent collaboration development.

Untagged

A2A Protocol Specification (Python)

Comprehensive guide to the A2A protocol Python implementation specification, covering agent cards, message passing, task management, security authentication, and other core functionalities' data structures and object relationships, providing developers with a complete protocol implementation guide.

Specification Python

Implementing A2A Agents with ADK: Complete Development Guide

This guide provides a detailed introduction on how to use Google ADK (Agent Development Kit) framework to implement A2A (Agent2Agent Protocol) intelligent agent systems. From environment setup, project structure design to server-side and client-side agent development, covering the complete development process to help developers quickly build intelligent agent applications that support distributed communication.

ADK

A2A ADK Expense Reimbursement Agent

An intelligent expense reimbursement agent based on Google ADK and A2A protocol that automatically generates forms to supplement missing information and streamlines the reimbursement process.

ADK

A2A vs ACP Protocol Comparison Analysis Report

A2A (Agent2Agent Protocol) and ACP (Agent Communication Protocol) represent two mainstream technical approaches in AI multi-agent system communication: 'cross-platform interoperability' and 'local/edge autonomy' respectively. A2A, with its powerful cross-vendor interconnection capabilities and rich task collaboration mechanisms, has become the preferred choice for cloud-based and distributed multi-agent scenarios; while ACP, with its low-latency, local-first, cloud-independent characteristics, is suitable for privacy-sensitive, bandwidth-constrained, or edge computing environments. Both protocols have their own focus in protocol design, ecosystem construction, and standardization governance, and are expected to further converge in openness in the future. Developers are advised to choose the most suitable protocol stack based on actual business needs.

ACP

A2A .NET SDK Comprehensive Documentation

The A2A (Agent2Agent) .NET SDK is a .NET library that implements Google's A2A Protocol v0.2.1, enabling Agent2Agent communication in .NET applications. This SDK is designed to work with ASP.NET Core applications, providing a simple way to add A2A support to your agents.

.NET

A2A + CrewAI + OpenRouter Chart Generation Agent Tutorial

Complete tutorial for building an intelligent chart generation agent using OpenRouter, CrewAI, and A2A protocol. Master end-to-end agent development, image data handling, and A2A Inspector debugging skills with full workflow guidance from setup to deployment.

CrewAI OpenRouter

Impact Analysis: Google Donating A2A Protocol to Linux Foundation

Google's donation of the Agent2Agent protocol to the Linux Foundation promotes AI agent communication standardization through neutral governance and support from over 100 companies, despite risks of slower decision-making and potential conflicts of interest, but overall benefits protocol development and industry adoption.

Untagged

A2A JS Sample: Movie Agent

Movie information agent using A2A Protocol with TMDB API, OpenRouter AI integration, and Express.js server.

TypeScript OpenRouter

A2A MCP: Predicting the Winner in AI Protocol Evolution

Comprehensive comparative analysis of A2A MCP protocols. Deep dive into A2A MCP technical architecture, implementation approaches, and ecosystem advantages. Analyzing competitive landscape of A2A MCP in interoperability, scalability, and market adoption, predicting future development of A2A MCP.

MCP

A2A JS SDK Complete Tutorial: Quick Start Guide

A2A Protocol JavaScript/TypeScript implementation guide. Features TypeScript type safety, Express.js server SDK, streaming processing, and intelligent agent development best practices.

TypeScript

A2A Java Sample

A2A protocol Java implementation guide. Features Maven multi-module architecture, Spring Boot server SDK, pure Java client SDK and AI translation service examples.

Java

A2A MCP Integration

Step-by-step guide to A2A and MCP integration using Python SDK. Build AI agents with OpenRouter, featuring server-client communication and tool discovery.

MCP Python

LlamaIndex File Chat Workflow with A2A Protocol

A comprehensive guide for building file chat agents using LlamaIndex Workflows and A2A Protocol. Includes detailed implementation of file upload and parsing, multi-turn conversations, real-time streaming, inline citations, LlamaParse and OpenRouter integration, and webhook notification systems. Perfect for developers looking to build advanced conversational AI agent services.

LlamaIndex Python OpenRouter

A2A Samples: Hello World Agent

A comprehensive step-by-step guide to building a Hello World agent with A2A Python SDK. Features detailed implementation of HelloWorldAgent, HelloWorldAgentExecutor, and A2AStarletteApplication components, complete with UV environment setup, dependency management, API endpoints, authentication, and testing instructions. Perfect for developers getting started with AI-powered agent services and A2A framework.

Python

Implementing CurrencyAgent with A2A Python SDK

A step-by-step guide to building a currency conversion agent with A2A Python SDK. Features detailed implementation of CurrencyAgent, AgentExecutor, and AgentServer components, complete with environment setup, testing, and deployment instructions. Perfect for developers looking to create AI-powered currency conversion services.

Python OpenRouter

Google A2A Python SDK Tutorial

A comprehensive guide to building A2A agents with Python, covering environment setup, agent implementation, server deployment, and advanced features like LLM integration and streaming.

Python

A2A vs MCP vs AG-UI

An in-depth analysis of AG-UI, MCP, and A2A protocols, exploring their characteristics, technical implementations, and application scenarios, and how they work together to build a complete AI agent communication ecosystem.

MCP

AlphaEvolve: A Comprehensive Report on Gemini-powered Algorithm Discovery

Explore Google DeepMind's AlphaEvolve technology, an evolutionary coding agent powered by Gemini models. Learn about its technical architecture, real-world applications in data center optimization and hardware design, and breakthrough achievements in mathematics and algorithm discovery.

Untagged

Building an A2A Currency Agent with LangGraph

This guide provides a detailed explanation of how to build an A2A-compliant agent using LangGraph and the Google Gemini model. We'll walk through the Currency Agent example from the A2A Python SDK, explaining each component, the flow of data, and how the A2A protocol facilitates agent interactions.

LangGraph Python

Python A2A Tutorial 20250513

Learn how to build and interact with A2A agents using Python. This comprehensive tutorial covers everything from basic concepts to advanced features like streaming and multi-turn conversations with Gemini AI.

Python

Practical Guide to the Official A2A SDK Python

Master A2A SDK Python development with this in-depth tutorial. Features step-by-step environment setup, detailed component explanations (Agent service configuration, executor implementation, test client), workflow diagrams, and practical code examples. Perfect for Python developers looking to quickly get started with A2A development.

Python

AI Protocols Analysis Report: A2A, MCP, and ACP

Deep dive into MCP, ACP, and A2A protocols - their core functionalities, implementation characteristics, security features, and how they complement each other in building comprehensive AI agent architectures.

MCP ACP

Python A2A Tutorial with Source Code

A comprehensive, hands-on guide to building a Python A2A server using the google-a2a library. Includes complete source code, practical examples, and step-by-step implementation details. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain. Perfect for developers looking to implement real-world A2A solutions.

Python Ollama

A2A Implementations

Explore various open-source implementations of the A2A protocol, including Java, TypeScript, Go, Rust, Python, and more.

Untagged

Python A2A Tutorial

A step-by-step guide to building a Python A2A server using the google-a2a library. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain.

Python LangChain Ollama

Awesome A2A Directory

Explore the complete ecosystem of Google's A2A protocol, including official documentation, community implementations, sample projects, and integration guides. Find everything you need to build and deploy AI agents that can securely communicate and collaborate across different applications.

Untagged

A2A Sample Methods and JSON Responses

Detailed guide showcasing A2A Protocol's core methods, from basic task management to advanced features like streaming and structured data handling, with practical JSON examples.

JSON

A2A Protocol Development Guide(TypeScript)

Master the A2A Protocol with this detailed TypeScript guide. Learn to build robust agent communication systems, implement JSON-RPC based messaging, and handle real-time updates with practical examples.

TypeScript

.NET

A2A .NET SDK Comprehensive Documentation

The A2A (Agent2Agent) .NET SDK is a .NET library that implements Google's A2A Protocol v0.2.1, enabling Agent2Agent communication in .NET applications. This SDK is designed to work with ASP.NET Core applications, providing a simple way to add A2A support to your agents.

.NET

ACP

A2A vs ACP Protocol Comparison Analysis Report

A2A (Agent2Agent Protocol) and ACP (Agent Communication Protocol) represent two mainstream technical approaches in AI multi-agent system communication: 'cross-platform interoperability' and 'local/edge autonomy' respectively. A2A, with its powerful cross-vendor interconnection capabilities and rich task collaboration mechanisms, has become the preferred choice for cloud-based and distributed multi-agent scenarios; while ACP, with its low-latency, local-first, cloud-independent characteristics, is suitable for privacy-sensitive, bandwidth-constrained, or edge computing environments. Both protocols have their own focus in protocol design, ecosystem construction, and standardization governance, and are expected to further converge in openness in the future. Developers are advised to choose the most suitable protocol stack based on actual business needs.

ACP

AI Protocols Analysis Report: A2A, MCP, and ACP

Deep dive into MCP, ACP, and A2A protocols - their core functionalities, implementation characteristics, security features, and how they complement each other in building comprehensive AI agent architectures.

MCP ACP

ADK

Implementing A2A Agents with ADK: Complete Development Guide

This guide provides a detailed introduction on how to use Google ADK (Agent Development Kit) framework to implement A2A (Agent2Agent Protocol) intelligent agent systems. From environment setup, project structure design to server-side and client-side agent development, covering the complete development process to help developers quickly build intelligent agent applications that support distributed communication.

ADK

A2A ADK Expense Reimbursement Agent

An intelligent expense reimbursement agent based on Google ADK and A2A protocol that automatically generates forms to supplement missing information and streamlines the reimbursement process.

ADK

AG2

CrewAI

A2A + CrewAI + OpenRouter Chart Generation Agent Tutorial

Complete tutorial for building an intelligent chart generation agent using OpenRouter, CrewAI, and A2A protocol. Master end-to-end agent development, image data handling, and A2A Inspector debugging skills with full workflow guidance from setup to deployment.

CrewAI OpenRouter

Extension

A2A Protocol Extension: Secure Passport Complete Guide

The Secure Passport Extension introduces a trusted context layer to the Agent2Agent (A2A) protocol, enabling calling agents to securely and voluntarily share a structured subset of their current context state with called agents. This extension aims to transform anonymous, transactional calls into collaborative partnerships.

Extension

A2A Traceability Extension: In-depth Analysis and Application Guide

The A2A (Agent2Agent) Traceability Extension is a powerful distributed tracing system specifically designed to provide complete call chain tracing for agent-to-agent communication in the A2A framework. This extension implements functionality similar to distributed tracing systems (such as Jaeger, Zipkin), but is optimized for the specific needs of multi-agent systems.

Extension

Inspector

JSON

A2A Sample Methods and JSON Responses

Detailed guide showcasing A2A Protocol's core methods, from basic task management to advanced features like streaming and structured data handling, with practical JSON examples.

JSON

Java

A2A Java Sample

A2A protocol Java implementation guide. Features Maven multi-module architecture, Spring Boot server SDK, pure Java client SDK and AI translation service examples.

Java

LangChain

Python A2A Tutorial

A step-by-step guide to building a Python A2A server using the google-a2a library. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain.

Python LangChain Ollama

LangGraph

Building an A2A Currency Agent with LangGraph

This guide provides a detailed explanation of how to build an A2A-compliant agent using LangGraph and the Google Gemini model. We'll walk through the Currency Agent example from the A2A Python SDK, explaining each component, the flow of data, and how the A2A protocol facilitates agent interactions.

LangGraph Python

LlamaIndex

LlamaIndex File Chat Workflow with A2A Protocol

A comprehensive guide for building file chat agents using LlamaIndex Workflows and A2A Protocol. Includes detailed implementation of file upload and parsing, multi-turn conversations, real-time streaming, inline citations, LlamaParse and OpenRouter integration, and webhook notification systems. Perfect for developers looking to build advanced conversational AI agent services.

LlamaIndex Python OpenRouter

MCP

AgentMaster Multi-Agent Conversational Framework - Multimodal Information Retrieval System Based on A2A and MCP Protocols

AgentMaster is a next-generation multi-agent conversational framework jointly developed by Stanford University and George Mason University, pioneering the integration of A2A and MCP protocols in a single system. It supports multimodal inputs including text, images, and audio, automatically decomposes complex tasks through coordinator agents, and implements various functions such as SQL queries, information retrieval, and image analysis with excellent performance and user-friendliness.

MCP

A2A MCP: Predicting the Winner in AI Protocol Evolution

Comprehensive comparative analysis of A2A MCP protocols. Deep dive into A2A MCP technical architecture, implementation approaches, and ecosystem advantages. Analyzing competitive landscape of A2A MCP in interoperability, scalability, and market adoption, predicting future development of A2A MCP.

MCP

A2A MCP Integration

Step-by-step guide to A2A and MCP integration using Python SDK. Build AI agents with OpenRouter, featuring server-client communication and tool discovery.

MCP Python

A2A vs MCP vs AG-UI

An in-depth analysis of AG-UI, MCP, and A2A protocols, exploring their characteristics, technical implementations, and application scenarios, and how they work together to build a complete AI agent communication ecosystem.

MCP

AI Protocols Analysis Report: A2A, MCP, and ACP

Deep dive into MCP, ACP, and A2A protocols - their core functionalities, implementation characteristics, security features, and how they complement each other in building comprehensive AI agent architectures.

MCP ACP

Ollama

Python A2A Tutorial with Source Code

A comprehensive, hands-on guide to building a Python A2A server using the google-a2a library. Includes complete source code, practical examples, and step-by-step implementation details. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain. Perfect for developers looking to implement real-world A2A solutions.

Python Ollama

Python A2A Tutorial

A step-by-step guide to building a Python A2A server using the google-a2a library. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain.

Python LangChain Ollama

OpenRouter

A2A + CrewAI + OpenRouter Chart Generation Agent Tutorial

Complete tutorial for building an intelligent chart generation agent using OpenRouter, CrewAI, and A2A protocol. Master end-to-end agent development, image data handling, and A2A Inspector debugging skills with full workflow guidance from setup to deployment.

CrewAI OpenRouter

A2A JS Sample: Movie Agent

Movie information agent using A2A Protocol with TMDB API, OpenRouter AI integration, and Express.js server.

TypeScript OpenRouter

A2A MCP Integration

Step-by-step guide to A2A and MCP integration using Python SDK. Build AI agents with OpenRouter, featuring server-client communication and tool discovery.

MCP Python

LlamaIndex File Chat Workflow with A2A Protocol

A comprehensive guide for building file chat agents using LlamaIndex Workflows and A2A Protocol. Includes detailed implementation of file upload and parsing, multi-turn conversations, real-time streaming, inline citations, LlamaParse and OpenRouter integration, and webhook notification systems. Perfect for developers looking to build advanced conversational AI agent services.

LlamaIndex Python OpenRouter

Implementing CurrencyAgent with A2A Python SDK

A step-by-step guide to building a currency conversion agent with A2A Python SDK. Features detailed implementation of CurrencyAgent, AgentExecutor, and AgentServer components, complete with environment setup, testing, and deployment instructions. Perfect for developers looking to create AI-powered currency conversion services.

Python OpenRouter

Python

AP2 (Agent Payments Protocol) Usage Tutorial

"AP2 (Agent Payments Protocol) is a protocol for agent payments that supports both human-present and human-absent commerce flows. This tutorial provides detailed instructions on how to use the AP2 Python sample project."

AP2 Python

A2A Protocol Specification (Python)

Comprehensive guide to the A2A protocol Python implementation specification, covering agent cards, message passing, task management, security authentication, and other core functionalities' data structures and object relationships, providing developers with a complete protocol implementation guide.

Specification Python

A2A MCP Integration

Step-by-step guide to A2A and MCP integration using Python SDK. Build AI agents with OpenRouter, featuring server-client communication and tool discovery.

MCP Python

LlamaIndex File Chat Workflow with A2A Protocol

A comprehensive guide for building file chat agents using LlamaIndex Workflows and A2A Protocol. Includes detailed implementation of file upload and parsing, multi-turn conversations, real-time streaming, inline citations, LlamaParse and OpenRouter integration, and webhook notification systems. Perfect for developers looking to build advanced conversational AI agent services.

LlamaIndex Python OpenRouter

A2A Samples: Hello World Agent

A comprehensive step-by-step guide to building a Hello World agent with A2A Python SDK. Features detailed implementation of HelloWorldAgent, HelloWorldAgentExecutor, and A2AStarletteApplication components, complete with UV environment setup, dependency management, API endpoints, authentication, and testing instructions. Perfect for developers getting started with AI-powered agent services and A2A framework.

Python

Implementing CurrencyAgent with A2A Python SDK

A step-by-step guide to building a currency conversion agent with A2A Python SDK. Features detailed implementation of CurrencyAgent, AgentExecutor, and AgentServer components, complete with environment setup, testing, and deployment instructions. Perfect for developers looking to create AI-powered currency conversion services.

Python OpenRouter

Google A2A Python SDK Tutorial

A comprehensive guide to building A2A agents with Python, covering environment setup, agent implementation, server deployment, and advanced features like LLM integration and streaming.

Python

Building an A2A Currency Agent with LangGraph

This guide provides a detailed explanation of how to build an A2A-compliant agent using LangGraph and the Google Gemini model. We'll walk through the Currency Agent example from the A2A Python SDK, explaining each component, the flow of data, and how the A2A protocol facilitates agent interactions.

LangGraph Python

Python A2A Tutorial 20250513

Learn how to build and interact with A2A agents using Python. This comprehensive tutorial covers everything from basic concepts to advanced features like streaming and multi-turn conversations with Gemini AI.

Python

Practical Guide to the Official A2A SDK Python

Master A2A SDK Python development with this in-depth tutorial. Features step-by-step environment setup, detailed component explanations (Agent service configuration, executor implementation, test client), workflow diagrams, and practical code examples. Perfect for Python developers looking to quickly get started with A2A development.

Python

Python A2A Tutorial with Source Code

A comprehensive, hands-on guide to building a Python A2A server using the google-a2a library. Includes complete source code, practical examples, and step-by-step implementation details. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain. Perfect for developers looking to implement real-world A2A solutions.

Python Ollama

Python A2A Tutorial

A step-by-step guide to building a Python A2A server using the google-a2a library. Learn about agent skills, agent cards, handling tasks, streaming responses, and integrating a local Ollama AI model with Langchain.

Python LangChain Ollama

Specification

A2A Protocol Specification (Python)

Comprehensive guide to the A2A protocol Python implementation specification, covering agent cards, message passing, task management, security authentication, and other core functionalities' data structures and object relationships, providing developers with a complete protocol implementation guide.

Specification Python

TypeScript

A2A JS Sample: Movie Agent

Movie information agent using A2A Protocol with TMDB API, OpenRouter AI integration, and Express.js server.

TypeScript OpenRouter

A2A JS SDK Complete Tutorial: Quick Start Guide

A2A Protocol JavaScript/TypeScript implementation guide. Features TypeScript type safety, Express.js server SDK, streaming processing, and intelligent agent development best practices.

TypeScript

A2A Protocol Development Guide(TypeScript)

Master the A2A Protocol with this detailed TypeScript guide. Learn to build robust agent communication systems, implement JSON-RPC based messaging, and handle real-time updates with practical examples.

TypeScript

Untagged

A2A Multi-Agent Example: Number Guessing Game

A2A protocol hands-on tutorial: Three lightweight agents collaborating to complete a number guessing game. Features evaluator, CLI frontend, and visualizer roles, demonstrating inter-agent communication, task management, and multi-turn dialogue mechanisms.

Untagged

2025 Complete Guide: Agent2Agent (A2A) Protocol - The New Standard for AI Agent Collaboration

A2A (Agent2Agent Protocol) is the first open standard protocol designed specifically for communication between AI agents, solving the collaboration challenges of AI agents developed by different organizations. This guide covers A2A protocol core concepts, technical implementation, practical application scenarios, and hands-on examples in Python, JavaScript, Java and other languages to help you quickly master agent collaboration development.

Untagged

Impact Analysis: Google Donating A2A Protocol to Linux Foundation

Google's donation of the Agent2Agent protocol to the Linux Foundation promotes AI agent communication standardization through neutral governance and support from over 100 companies, despite risks of slower decision-making and potential conflicts of interest, but overall benefits protocol development and industry adoption.

Untagged

AlphaEvolve: A Comprehensive Report on Gemini-powered Algorithm Discovery

Explore Google DeepMind's AlphaEvolve technology, an evolutionary coding agent powered by Gemini models. Learn about its technical architecture, real-world applications in data center optimization and hardware design, and breakthrough achievements in mathematics and algorithm discovery.

Untagged

A2A Implementations

Explore various open-source implementations of the A2A protocol, including Java, TypeScript, Go, Rust, Python, and more.

Untagged

Awesome A2A Directory

Explore the complete ecosystem of Google's A2A protocol, including official documentation, community implementations, sample projects, and integration guides. Find everything you need to build and deploy AI agents that can securely communicate and collaborate across different applications.

Untagged