1.a2aproject / A2AAgent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.a2aa2a-mcpa2a-protocola2a-serveragentsgenerative-ai+1 moreShellAPACHE-2.026K total2.7K forks+88 starsfrom 26,293 · score 4.49