A2A Protocol Passes 150 Organizations: Native Support in Google ADK, LangGraph, CrewAI, Semantic Kernel, and AutoGen

Linux Foundation·medium signal

Google's Agent-to-Agent protocol now has 150+ supporting organizations including Google, Microsoft, AWS, Salesforce, SAP, ServiceNow, Workday, and IBM — tripling from 50 partners at the April 2025 launch. The v1.2 spec (March 2026) is natively integrated into Google ADK, LangGraph, CrewAI, LlamaIndex Agents, Semantic Kernel, and AutoGen. Google I/O 2026 featured AgentKit 2.0 for Antigravity with 16 specialized agents, 40+ domain skills, and tightened A2A support.