Friendly Captcha for

Go is an open source programming language supported by Google that can be used to create computer programs. Friendly Captcha protects Golang applications from spam and bots.

Field of application/


Tired of clicking on cars?

Friendly Captcha is the user-friendly way to stop spam and bots - no labeling needed.

Get rid of annoying labeling tasks. Make spam protection easy and privacy compliant.

Happy users, increased conversion rates

With Friendly Captcha no user tasks are needed. It runs automatically in the background.

Fully accessible and WCAG compliant

Don’t exclude any users, Friendly Captcha is entirely barrier-free.

Privacy compliant with GDPR, CCPA, LGPD and PIPL

Friendly Captcha protects users’ privacy at the highest level of data protection.

European servers for maximum data protection

Ensure that your customers’ personal data remains in the EU.

The Captcha for Go

How the integration works


Create a Friendly Captcha account

Creating an account is completely free, all you need is a valid email address and you’re ready to go. Choose a plan that covers your needs. The first 30 days are free of charge.


Create an 'Application' to get a sitekey

Create an application in the Friendly Captcha dashboard to get a sitekey for your integration, as shown in the screenshot below.


Create an API key to interact with the API

Create an API key in the Friendly Captcha dashboard, as shown in the screenshot below.
Please make sure to copy and save the API key as you can only access it once.


Complete your billing details

To ensure that your account remains functional after the 30-day trial period, make sure to enter your billing information in the Friendly Captcha dashboard.

You can adjust and cancel your Friendly Captcha plan online at any time.


Integrate the source code to your Go application

Share the integration code with your developer via the link below to integrate Friendly Captcha into your Go application.



Connect Friendly Captcha with Go

To finish the integration, share with your developer the sitekey generated in step 2 and the API key generated in step 3.

The Friendly Captcha widget will appear in your Go frontend.

Completed: 2s (2480K/s)
I'm not a robot
FriendlyCaptcha ⇗


To verify that the integration is working properly, check out this step-by-step manual from our support website.

Friendly Captcha offers packages for any size of business based on the number of puzzle requests. You can find our plans and pricing models here.

Yes, absolutely. In order to get started, you can create a Friendly Captcha account here and take advantage of a 30-day trial period.

Create a Friendly Captcha account here and get a free 30 day trial. Then share the link to the Friendly Captcha documentation with your developer:

Yes, Friendly Captcha is successfully used by a large variety of well-known corporations, governments and organizations. Contact us to learn more about our enterprise options.

Ready to get started?

Join thousands of organizations in switching to a privacy-first anti-bot solution. We protect your websites and online services with the highest German quality and data protection standards.

Privacy matters

Learn more about our commitment to protect your users' privacy.

Start your integration

Adding Friendly Captcha takes only minutes and just a few lines of code.