A2A

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

What it costs

Free and open source

Category

Agents & Automation

On Radar

Open-source project on GitHub, 26,189 stars

Ranks

No. 177 of 1,060 in Agents & Automation

Released

25 March 2025

Website

github.com · a2aproject/A2A ↗

Similar AI agents and automation tools

1. Mastra FactoryFrom issue to production, run by agents.▲ 553
2. 12-factor-agentsWhat are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers?★ 26,742
3. TinesBuild agents & automations integrated across your workspace▲ 553
4. InstructAutomate anything with a single prompt▲ 552
5. daprDapr is a portable runtime for building distributed applications across cloud and edge, combining event-driven architecture with workflow…★ 26,151
6. /agent by FirecrawlGather structured data wherever it lives on the web▲ 549

Make A2A? Show it's listed on Radar

Add this badge to your site or README. It links to this page.

<a href="https://raunakpatil.com/ai-tools/tool/a2a"><img src="https://raunakpatil.com/img/badges/listed-on-radar.svg" alt="A2A is listed on Radar" height="40"></a>

[![Listed on Radar](https://raunakpatil.com/img/badges/listed-on-radar.svg)](https://raunakpatil.com/ai-tools/tool/a2a)