# A year of open collaboration: Celebrating the anniversary of A2A

DevFeed: [A year of open collaboration: Celebrating the anniversary of A2A](<https://devfeed.tech/articles/a-year-of-open-collaboration-celebrating-the-anniversary-of-a2a-34296.md>)

Original publisher: [Read original article](<http://opensource.googleblog.com/2026/04/a-year-of-open-collaboration-celebrating-the-anniversary-of-a2a.html>)

Author: Google Open Source (noreply@blogger.com)

Published: 2026-04-16T20:55:00Z

Content type: opinion

Language: en

Sources: [Google Open Source Blog](<https://devfeed.tech/sources/google-open-source-blog.md>)

Topics: [A2A protocol](<https://devfeed.tech/topics/a2a-protocol.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Google](<https://devfeed.tech/topics/google.md>), [interoperability](<https://devfeed.tech/topics/interoperability.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [linux foundation](<https://devfeed.tech/topics/linux-foundation.md>), [Security](<https://devfeed.tech/topics/security.md>), [Load Balancing](<https://devfeed.tech/topics/load-balancing.md>)

Tags: [a2a](<https://devfeed.tech/tags/a2a.md>), [a2a-protocol](<https://devfeed.tech/tags/a2a-protocol.md>), [a2april](<https://devfeed.tech/tags/a2april.md>), [agent2agent](<https://devfeed.tech/tags/agent2agent.md>), [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [amazon](<https://devfeed.tech/tags/amazon.md>), [amazon-web-services](<https://devfeed.tech/tags/amazon-web-services.md>), [cisco](<https://devfeed.tech/tags/cisco.md>), [cryptographic](<https://devfeed.tech/tags/cryptographic.md>), [interoperability](<https://devfeed.tech/tags/interoperability.md>), [linux-foundation](<https://devfeed.tech/tags/linux-foundation.md>), [load-balancing](<https://devfeed.tech/tags/load-balancing.md>), [microsoft](<https://devfeed.tech/tags/microsoft.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [sap](<https://devfeed.tech/tags/sap.md>), [security](<https://devfeed.tech/tags/security.md>), [specifications](<https://devfeed.tech/tags/specifications.md>), [standard](<https://devfeed.tech/tags/standard.md>)

## AI overview

Google reflects on the first year of the Agent2Agent (A2A) protocol, including its donation to the Linux Foundation, the growth of its supporting ecosystem, and the release of A2A Protocol v1.0. The article highlights security, enterprise architecture, and interoperability improvements for multi-agent workflows.

## Source excerpt

by Patricia Cruz, Google Open Source One year ago, on April 9th, 2025 Google announced the Agent2Agent(A2A) protocol. We saw the need for a "common language" that allows AI agents built on different frameworks to collaborate well across diverse systems. Then, on June 23, 2025 at the Open Source Summit North America in Denver, Mike Smith stood on stage to share a pivotal moment for the future of AI interoperability when Google officially donated the A2A protocol to the Linux Foundation, establishing it as a vendor-neutral, community-governed standard. This move was driven by a core belief: for AI agents to truly transform how we work and live, they must be able to communicate across framework boundaries and organizational silos without being locked into a single provider's ecosystem. By placing A2A under the neutral stewardship of the Linux Foundation, we opened the doors for the entire industry to build, contribute, and innovate together. A Foundation of Partners The formation of the A2A Project was made possible through the support of our founding members, including Amazon Web Services, Cisco, Microsoft, Salesforce, SAP, and ServiceNow. Over the past twelve months, this coalition has grown, with over 100 technology companies now supporting the project. From Prototype to Production The momentum since the donation has been remarkable. What began as a Google-led initiative has evolved into critical infrastructure for horizontal, peer-to-peer collaboration. Just one month ago, in March, the project reached a major milestone with the release of A2A Protocol v1.0, the first stable, fully production-ready version of the standard. Key achievements from the community this year include: Enhanced Security: The implementation of Signed Agent Cards for cryptographic identity verification, ensuring trust in multi-agent workflows. Web-Aligned Architecture: Refined specifications that support familiar load-balancing and security patterns for enterprise-scale deployments. Ecosystem