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Install the PromptSpotter extension

Adding PromptSpotter to a browser takes about a minute. You install once per browser profile, sign in once, and you’re protected on every supported AI tool from that point on.

Before you start

You’ll need a PromptSpotter account — if you haven’t created one yet, sign up at promptspotter.com/login (no card required for the free tier). The extension currently supports Chrome and Chromium-based browsers (Edge, Brave, Arc). Firefox and Safari are on the roadmap.

Install for yourself

  1. Open the Chrome Web Store listing — we’ll post the direct link here as soon as the listing publishes (it’s in review now). In the meantime, search “PromptSpotter AI DLP” in the Chrome Web Store.
  2. Click Add to Chrome, then Add extension when prompted.
  3. Pin the PromptSpotter icon to your toolbar so you can see status at a glance — click the puzzle-piece menu and the pin icon next to PromptSpotter.
  4. You need a setup link to connect the extension to your company. If you don’t have one yet, sign in to PromptSpotter — you’ll create a setup link in the onboarding wizard, then click that link in this browser.
  5. Once you click the setup link, the extension auto-configures — you’ll see “All set” with a green check. No typing, no token to paste.

Confirm protection is active

Open ChatGPT, Claude, Gemini, or any other supported AI tool. The PromptSpotter icon should show a green dot, indicating that the page is being watched. Try pasting a fake API key (something like sk-test-1234567890abcdef) into the chat box — you should see a warning before you can send it.

If you don’t see a warning, check that the extension is enabled at chrome://extensions and that you’re signed in. Still nothing? Email info@promptspotter.com with your browser version.

Install from an admin setup link

If your admin sent you a setup link, the install is even shorter:

  1. Click the setup link in the email or chat message.
  2. You’ll land on a page that either opens the Chrome Web Store directly or walks you through the install.
  3. After install, the extension recognises the setup token and signs you in automatically — no email round-trip.

Admins: see Invite teammates for how to generate those setup links.