Direct install

For solo users and small teams (1 to 4 agents). Beyond 5 agents, please use the enterprise deployment guides.

1. Install the extension

Pick your browser. The extension is officially published on both stores and signed by M-KIS SAS.

Install for Chrome↗Install for Firefox↗

2. Pin the extension (recommended)

To keep the SafePrompt icon visible in your toolbar at all times:

• Chrome: click the puzzle icon in the top right, then click the pin next to SafePrompt.
• Firefox: right-click the SafePrompt icon in the toolbar, then choose "Pin to toolbar".

3. Create your SafePrompt account

The Solo Free plan is free with no credit card required. The extension picks up your session automatically.

Create a free account →

4. Check that everything works

Open ChatGPT, Claude or Gemini, then paste a fake API secret (e.g. sk-test-1234567890abcdef). The extension should show a tooltip and mask the secret with a random token before it is sent.