| Filename | Latest commit message | Latest commit date |
|---|---|---|
79670b4dcdApply host-provided safe area insets as padding on main containers across all examples. This ensures content doesn't render under system UI elements like phone notches. React apps use `useState` + `onhostcontextchanged` handler with initial fetch via `getHostContext()` in `useEffect`. Vanilla JS apps apply padding in the handler and invoke it after `connect()`. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> |
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| .. | ||
| src | ||
| mcp-app.html | ||
| package.json | ||
| README.md | ||
| server.ts | ||
| tsconfig.json | ||
| vite.config.ts | ||
Example: Basic Server (React)
An MCP App example with a React UI.
Tip
Looking for a vanilla JavaScript example? See
basic-server-vanillajs!
Overview
- Tool registration with a linked UI resource
- React UI using the
useApp()hook - App communication APIs:
callServerTool,sendMessage,sendLog,openLink
Key Files
server.ts- MCP server with tool and resource registrationmcp-app.html/src/mcp-app.tsx- React UI usinguseApp()hook
Getting Started
npm install
npm run dev
How It Works
- The server registers a
get-timetool with metadata linking it to a UI HTML resource (ui://get-time/mcp-app.html). - When the tool is invoked, the Host renders the UI from the resource.
- The UI uses the MCP App SDK API to communicate with the host and call server tools.