Google ADK for TypeScript GA: Code-First Multi-Agent Framework With Native A2A and MCP — Python ADK Hits v1.26.0

Google Developers Blog·high signal

Google launched the Agent Development Kit for TypeScript as an open-source, code-first multi-agent framework, completing a four-language SDK family alongside Python, Java, and Go. ADK Python simultaneously released v1.26.0 on March 13. Both SDKs are model-agnostic with Gemini 3 Pro/Flash optimization and built-in A2A and MCP interoperability — making ADK the first multi-language agent SDK with full protocol-native support across all variants.