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[ARTICLE · art-32340] src=news.ycombinator.com ↗ pub= topic=ai-agents verified=true sentiment=· neutral

Ask HN: Is anyone using the A2A protocol yet?

A developer on Hacker News is asking whether anyone is using Google's A2A (Agent-to-Agent) protocol, noting that while it was unclear six months ago, the rise of agent-based systems and the MCP protocol may now make A2A relevant for inter-agent communication.

read1 min views1 publishedJun 18, 2026

The A2A protocol is an agent to agent protocol from Google. I was looking at it 6 months back but it didn't feel like I really understood how to use it at that point. Probably because we were all still trying to figure out agents and then the MCP protocol became quite a big deal. But now I'm starting to think that once an agent has tools and services and data and then contacts. Actually, the point of interaction becomes the agent itself and then if you build other agents you would want them to interact because they have the most relevant context and ability to answer whatever queries. So I was just curious to know if anyone is using this yet?

https://github.com/a2aproject/A2A

Comments URL: [https://news.ycombinator.com/item?id=48582679](https://news.ycombinator.com/item?id=48582679)

Points: 1

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