API Endpoint Tester

Quick API request runner from the toolbar.

dev
PlugThis prompt
Build a Chrome extension called "API Endpoint Tester" — a lightweight Postman from the toolbar. Popup with URL field, method picker (GET/POST/PUT/PATCH/DELETE), headers editor, body editor (JSON, form-data, raw), and a Send button. Display response status, headers, time, size, and body with JSON pretty-printing. Save request history (last 50) and named collections in chrome.storage. Support environment variables. Permissions: storage. Host permissions: <all_urls>. Manifest V3.

How to build it in 3 minutes

  1. Sign in to PlugThis and open the chat input.
  2. Copy the prompt above and paste it into the chat.
  3. PlugThis generates the full Manifest V3 extension in 60-90 seconds.
  4. Download the zip, extract it, and load it via chrome://extensions developer mode.

Related ideas

JSON Pretty Printer

Format JSON inline on any page.

Color Picker with History

Pick colors from any page, save to a palette.

CSS Inspector Pro

Better element inspection with copy-to-clipboard.

GitHub Repo File Counter

Show line counts and file types for any repo.

← Back to all 50+ Chrome extension ideas