Show HN: Open-source UI components for apps that run inside ChatGPT (opens in new tab)

800M people use ChatGPT and Claude weekly. Right now they get text responses. Soon they'll get real interfaces: product cards, blog posts, booking flows, payment screens rendered directly in the conversation.

We built an open-source component library for this. Install any block with one command and customize it to your brand.

If you're building MCP servers or experimenting with AI-native apps, this might save you time.

Are you building apps for AI assistants? Would love to hear what's missing in your workflow.