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Node.js CAPTCHA

Protect API requests, form submissions, and auth checks in Node.js with server-side CaptchaFox verification that gives your backend direct control over bot defense.

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Node.js logo
What is Node.js?

Node.js runs JavaScript on the server for APIs, web backends, and server-rendered applications.

Why choose CaptchaFox for Node.js?

CaptchaFox protects API requests, form submissions, and auth checks in Node.js through direct server-side verification and gives your backend full control over bot defense.

Why choose CaptchaFox for Node.js?

Verify CaptchaFox tokens in Node.js and secure high-risk actions from browser and mobile clients.

Privacy-friendly

Protect API requests, form submissions, and auth checks in Node.js 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 Node.js.

User-friendly and accessible

Reduce friction for real users in Node.js. 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 requests, form submissions, and auth checks.

Set up CaptchaFox in Node.js in 5 steps

You can add CaptchaFox to Node.js in only a few minutes.

  1. Step 1

    Create account

    Create a free CaptchaFox account so you can add sites, manage keys, and review bot traffic.

  2. Step 2

    Create a site and receive your keys

    Add your Node.js domain or application in the dashboard. CaptchaFox then provides a site key for the front end or module and a secret key for verification.

  3. Step 3

    Install the integration

    Install the Node.js integration using the official setup guide and enable CaptchaFox for the relevant flows.

    Install package
  4. Step 4

    Activate the CAPTCHA

    Paste the site key and secret key into your Node.js verification endpoint, middleware, or server action that handles protected requests.

  5. Step 5

    Your Node.js application is protected by CaptchaFox!

    Your application is now protected, and you can integrate CaptchaFox into additional forms or other domains.

Related integrations

  • Express logo

    Express

    Express is a Node.js web framework used for APIs, server-rendered applications, and custom backend request handling.

  • Django logo
    Coming soon

    Django

    Django is a Python web framework used for forms, authentication flows, admin interfaces, and database-backed web applications.

  • Java logo
    Coming soon

    Java

    Java powers many enterprise backends, APIs, and identity-sensitive services.

FAQ

Why should I protect Node.js with a CAPTCHA?
Node.js handles public and sensitive flows such as API requests, form submissions, and auth checks. A CAPTCHA stops spam, fake requests, credential stuffing, and automated abuse before it reaches your forms, logins, or registrations.
What is the best Node.js CAPTCHA?
The best CAPTCHA for Node.js blocks bots without forcing real users through image puzzles or unnecessary friction. It is privacy-friendly, accessible, and fast to integrate. That is exactly what CaptchaFox delivers.
Is CaptchaFox accessible for Node.js?
CaptchaFox is designed to minimize friction for real users. In Node.js, that means a more accessible CAPTCHA experience focused on usability instead of difficult challenges or image-puzzle style friction.
Is CaptchaFox privacy-friendly for Node.js?
Yes. CaptchaFox is a privacy-friendly CAPTCHA alternative. When you secure Node.js with CaptchaFox, you use bot protection designed for privacy and strict data protection requirements.
How fast can I integrate CaptchaFox with Node.js?
The technical setup is straightforward: create an account, add a site, install the package, connect the keys, and verify tokens on the server. This page shows the setup path for Node.js.

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