Google launches the A2A open protocol to enable AI agents to collaborate with each other

Google Launches A2A Open Protocol to Enable AI Agents to Collaborate with Each Other

Google has introduced the Agent2Agent (A2A) protocol, establishing a standardized collaboration framework among agents. The protocol has received support from over 50 technology companies and service providers and will launch a production version in 2025.

A2A allows AI agents developed by different vendors or frameworks to communicate with each other, exchange information securely, and coordinate actions, covering multimodal collaboration scenarios such as text, audio, and video streams. Its working mechanisms include capability discovery (identifying functions through JSON - formatted "agent cards"), task management (defining the life cycle and synchronizing status), message collaboration, and user experience negotiation (supporting UI types such as iframes and forms).

A2A will complement Anthropic's Model Context Protocol (MCP). Currently, the draft specification and code examples are released in an open - source form, and developers can build cross - platform agent systems based on this framework.

Google Blog

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