A2A Implementations

Name	Author	Description	Stars
a2ajava	@vishalmysore	A pure Java implementation of Google's A2A protocol for Spring Boot applications, featuring both client and server implementations
legion-a2a	@TheRaLabs	A TypeScript implementation of the A2A protocol with a focus on modularity and extensibility
trpc-a2a-go	@trpc-group	Go A2A implementation by the tRPC team featuring full client/server support, in-memory task management, streaming responses, session management, multiple auth methods (JWT, API Key, OAuth2), and comprehensive examples
a2a-go	@a2aserver	A Go library for building A2A servers, with example implementations
a2a-rs	@EmilLindfors	An idiomatic Rust implementation following hexagonal architecture principles
a2a_min	@pcingola	A minimalistic Python SDK for A2A communication
a2adotnet	@azixaka	A C#/.NET implementation of the A2A protocol
nestjs-a2a	@thestupd	A module for integrating the A2A protocol into NestJS applications
python-a2a	@themanojdesai	An easy-to-use Python library for implementing the A2A protocol
Aira	@IhateCreatingUserNames2	An A2A network implementation for hosting, registering, discovering, and interacting with agents
Cognisphere	@IhateCreatingUserNames2	An AI agent development framework built on Google's ADK, facilitating agent creation potentially for A2A networks
a2a-server	@chrishayuk	A lightweight A2A python implementation
a2a-cli	@chrishayuk	A command-line client for the A2A
A2A Test Suit	@robert-at-pretension-io	A2A Test Suite
Grasp	@adcentury	A Self-hosted Browser Using Agent with built-in MCP and A2A support
swissknife	@daltonnyx	A multi-agent chat application with MCP support, aiming to expose agents via the A2A protocol and connect to remote A2A agents as a client
artinet-sdk	@the-artinet-project	A JS/TS SDK for the Agent2Agent Protocol with a focus on developer experience and comprehensive features

Goto A2A