This week, Google launched A2UI, an open source project to help developers build “agentic user interfaces.” It’s the latest in what’s becoming a regular release cycle of new standards and protocols for building a user interface in AI agents and chatbots.
First, there was MCP-UI, a Model Context Protocol (MCP) ecosystem project closely aligned with Anthropic and used by Shopify (amongst others). Soon after, OpenAI launched Apps SDK, along with AgentKit and other UI tooling. Then, just last month, MCP Apps was announced — a proposed…

![[CITYPNG.COM]White Google Play PlayStore Logo – 1500×1500](https://startupnews.fyi/wp-content/uploads/2025/08/CITYPNG.COMWhite-Google-Play-PlayStore-Logo-1500x1500-1-630x630.png)