Microsoft supports 'Agent2Agent (A2A)', a protocol developed by Google to connect AIs



As many software development companies work on developing AI agents, mechanisms are being built to enable collaboration between AI agents across manufacturer boundaries. Microsoft has recently announced that it will support the

Agent2Agent (A2A) protocol, developed by Google, for connecting AI agents.

Empowering multi-agent apps with the open Agent2Agent (A2A) protocol | The Microsoft Cloud Blog
https://www.microsoft.com/en-us/microsoft-cloud/blog/2025/05/07/empowering-multi-agent-apps-with-the-open-agent2agent-a2a-protocol/

To utilize AI, it is effective to properly link the data output by various services and software. When AI apps first became commonplace, each service had to respond in its own way, but at the time of writing, there is a growing trend to adopt the data linking protocol ' Model Context Protocol (MCP) ' developed by AI company Anthropic, making data linking easier.

A2A was developed by Google as a protocol to complement MCP, enabling collaboration between 'AI agents' that use AI to autonomously perform routine tasks. At the time of its announcement in April 2025, A2A was promised to be supported by more than 50 companies, including Atlassian, Salesforce, and PayPal.

Google Announces 'Agent2Agent', an Interoperability Protocol to Enable Collaboration Between AI Agents - GIGAZINE



Microsoft has announced that it will support A2A in Azure AI Foundry and Copilot Studio on May 7, 2025. With both products supporting A2A, users will be able to safely call the output of AI agents running outside of Microsoft while maintaining governance and service level agreements (SLAs).



Support for A2A in Azure AI Foundry and Copilot Studio is in development and will be available in preview soon, and Microsoft has also committed to contributing to the development of A2A itself.

Following the news that Microsoft will be supporting A2A, Google posted a welcoming post on its official X account:




The A2A source code is available on GitHub , and detailed information is available on the following page.

Agent2Agent Protocol (A2A)
https://google.github.io/A2A/



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in Software, Posted by log1o_hf