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1010just read about it. MCP Apps let servers return interactive HTML interfaces (data
1111visualizations, forms, dashboards) that render directly in the chat.
1212
13<Frame caption="Excalidraw MCP App, running in Claude">
14 <img src="https://mintcdn.com/mcp/jbEkS7m9mV8aY_kB/images/apps/excalidraw.gif?s=c783b088f3c687e4dd4cf05c0d20f325" alt="An Excalidraw MCP App drawing a sequence diagram inside a Claude conversation" width="620" height="510" data-path="images/apps/excalidraw.gif" />
15</Frame>
16
1317## Why not just build a web app?
1418
1519You could build a standalone web app and send users a link. However, MCP Apps