Express CAPTCHA
Protect API routes, auth endpoints, and public form actions in Express with server-side CaptchaFox verification that gives your backend direct control over bot defense.
Express is a Node.js web framework used for APIs, server-rendered applications, and custom backend request handling.
CaptchaFox protects API routes, auth endpoints, and public form actions in Express through direct server-side verification and gives your backend full control over bot defense.
Why choose CaptchaFox for Express?
Verify CaptchaFox tokens in Express and protect forms, auth endpoints, and public API actions with the Node.js package.
Privacy-friendly
Protect API routes, auth endpoints, and public form actions in Express with privacy-first bot protection for real users. CaptchaFox is compliant with GDPR and CCPA.
Easy to integrate
CaptchaFox gives your team a drop-in backend integration with clear verification flows and extensive documentation for Express.
User-friendly and accessible
Reduce friction for real users in Express. CaptchaFox is WCAG 2.2 AA compliant and avoids difficult challenges or image-puzzle style CAPTCHA flows.
Strong bot protection
Block spam, fake requests, credential abuse, and automated submissions across API routes, auth endpoints, and public form actions.
Set up CaptchaFox in Express in 5 steps
You can add CaptchaFox to Express in only a few minutes.
- Step 1
Create account
Create a free CaptchaFox account so you can add sites, manage keys, and review bot traffic.
- Step 2
Create a site and receive your keys
Add your Express domain or application in the dashboard. CaptchaFox then provides a site key for the front end or module and a secret key for verification.
- Step 3
Install the integration
Install the Express integration using the official setup guide and enable CaptchaFox for the relevant flows.
Install package - Step 4
Activate the CAPTCHA
Paste the site key and secret key into your Express middleware, route handlers, and the verification layer behind protected requests.
- Step 5
Your Express application is protected by CaptchaFox!
Your application is now protected, and you can integrate CaptchaFox into additional forms or other domains.
Related integrations
FAQ
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Fight bots and protect your users' data.
Don't give fraudsters and spammers a chance and protect your website with CaptchaFox today.
