🧪 Playground — try it yourself

Run code, validate MCP configs, and drive a simulated coding agent.

HTML + CSS + JS

Result

\n"},"tool-call":{"label":"🔧 Tool calling (JSON)","code":"\n\n\n

How a model calls a tool

\n\n"},"fetch-api":{"label":"🌐 Fetch + render","code":"\n\n\n

\n\n

Click the button…

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