GenUI: first look at json-render and MCP Apps

▤ Summary

The article explains json-render as a JSON-driven UI framework for building dynamic application interfaces with React-like patterns, schema validation, and patch-based updates. It shows how the framework connects to MCP Apps so AI clients like Claude, ChatGPT, and Cursor can render and refine app interfaces through tool calls and structured outputs. It also introduces the @json-render/mcp package, which simplifies app creation, server setup, and client-side rendering with reusable UI resources. The piece positions json-render as a practical generative UI layer for agentic apps, with examples for dashboards, forms, and multi-step workflows.

▦ Linked Companies

Vercel

$50M to $100M