# Awesome A2A Directory

By [czmilo](https://paragraph.com/@zhangcheng) · 2025-04-19

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[https://github.com/sing1ee/a2a-directory.git](https://github.com/sing1ee/a2a-directory.git)

A2A (Agent2Agent) is an open protocol from Google enabling AI agents to communicate securely and collaborate. It breaks down silos between isolated agent systems, allowing for complex cross-application automation.

[https://a2aprotocol.ai/](https://a2aprotocol.ai/)

Check a2aprotocol to dive into the protocol.

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*Originally published on [czmilo](https://paragraph.com/@zhangcheng/awesome-a2a-directory)*