From install to first slot in under 5 minutes.
A technical look at how SlotHunter monitors VFS, handles session expiry, and keeps your account invisible to bot detection.
Install the Chrome extension
One-click install from the Chrome Web Store. The extension is a 38 KB package — no bloat, no telemetry, no background server.
Compatible with Chrome, Edge, Brave and all Chromium-based browsers.
Enter your monitoring preferences
Pick your destination country, visa category, date window, and how often to check. Store your VFS credentials if you want auto-login.
Everything is encrypted in your browser's local storage. We do not have servers that see your data.
Log into VFS once, press Start
The extension opens your VFS account in a tab, and you click once to start monitoring. That's it — now it runs silently.
JWT expired? Auto-login kicks in: we solve Turnstile via CapSolver, refresh the session, and resume.
Get notified the instant a slot appears
Chrome push + Telegram message within a second of the slot being released. Includes exact date, time, and a direct booking link.
Optional auto-booking clicks through date + time + Continue — VFS holds your slot for ~10 minutes while you confirm.
Built for the slot race, not for demos.
API-level detection
We intercept VFS's own slot-check endpoint (POST /CheckIsSlotAvailable). No DOM scraping, no missed slots — we see the response exactly when VFS does.
Zero bot detection
The extension runs inside your real Chrome with your real fingerprint. No Playwright, no Selenium, no automation flags. VFS sees a normal user session.
Kill-switch on errors
Three consecutive errors? We pause automatically. Rate-limit hit? We back off. Your account stays safe.