StackA2A

Category

Utility

General-purpose A2A agents: weather, email, notifications, and more.

11 agents

Weather MCP (Official Sample)

A2A Project

56

Official A2A Java sample: Weather agent with MCP integration for real-time forecasts

1,329utilityjavaOfficial

Hector

verikod

36

A2A-native AI agent platform built with Go for high-performance agent orchestration

50utility

Ai Mocks

mokksy

42

Kotlin mock server for HTTP/SSE and LLM APIs with WireMock-style testing for A2A agents

36utilitylangchainjava

A2A Validation Tool

llmx-tech

22

A2A validation tool for agent card verification and protocol compliance testing

10utilitytypescript

Capiscio Node

capiscio

37

The definitive CLI for validating A2A (Agent-to-Agent) protocol agent cards. Validates cryptographic trust, schema compliance, and live endpoint functionality.

4utilitytypescript

Openribcage

craine-io

21

A2A protocol client and server utility for avatar interfaces and immersive AI agents

4utilitygo

Chungoid

chungoid

19

Self-building AI agent with MCP server capabilities using Python and A2A protocol

2utilitypython

AI Engineer

lekhrajdinkar

32

Notes on gen AI concepts and tools. POC on agentic AI with MCP, A2A, langGraph, langchain, openAI LLM, crewAI

1utilitylanggraphpython

A2A Java SDK Spring

goodfriend2ks

34

A2A Java SDK for Spring Framework. Including server, Spring Boot auto configuration, Spring AI tools, and Spring AI examples.

utilityspring-bootjava

Ca2a

RussellLuo

18

A command-line utility for interacting with A2A agents.

utilitypython

Tann Utility Services Pvt. Ltd.

Lifie.ai Hub

55

Tann Utility Services provides integrated facilities management services and business support solutions to clients across various industries, including manufacturing, hospitality, healthcare, and corporate sectors.

utilityStreaming