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API Testing Workbench

Developer Tools

Type this exact prompt into LLMinONE and watch it become a live, interactive developer tools app:

Build an API testing workbench: enter a URL, method, headers and JSON body, send the request, and see status, timing, size and a formatted JSON response with collapsible nodes. Keep a request history with re-run and duplicate, save named collections, add environment variables like {{baseUrl}}, and show a response-size and time sparkline across runs.
Build this now →

What you get

How to build it

  1. Copy the prompt above
  2. Paste it into LLMinONE and press send
  3. Say what to change — it rebuilds the app in place

Say what to change — it rebuilds the app in place — API Testing Workbench.

Make it yours

Add syntax highlighting for another languageAdd a share button that saves the workspaceAdd keyboard shortcuts for every action

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