Alt
Free Discord bot
Free Discord CAPTCHA verification
Prove a joiner is human before they get in, without annoying the people who are.
What it does
A CAPTCHA that stays out of the way
Mostly invisible
Powered by Cloudflare Turnstile, which usually needs no clicking for real people.
Checked on the server
The result is verified on our server, not just in the browser.
One of your rules
Add the CAPTCHA to your verification rules, on its own or with sign-ins and other checks.
Always on in Smart verification
Smart verification always includes the CAPTCHA and adds more checks for risky accounts.
Free vs Plus
Free for every server
Free
$0, no limit on checks
- CAPTCHA on the verification page
- All sign-in platforms and the rule builder
- Anti-alt detection, VPN blocking and anti-raid
Plus
Optional upgrade
- Your own bot name and avatar
- Page branding and custom messages
- No ads on the verification page
Frequently asked questions
Which CAPTCHA does AltShield use?
Cloudflare Turnstile, which is usually invisible for real people.
Does a CAPTCHA stop every bot?
No CAPTCHA does on its own. That is why AltShield adds alt detection, VPN blocking and sign-in checks on top.
More features
Stop bots at the door
Add the bot and add the CAPTCHA to your verification rules.
Add AltShield to Discord