At a Glance:
Friendly Captcha SDK is the official client-side integration tool for embedding Friendly Captcha v2 widgets into websites through JavaScript.
Overview:
Friendly Captcha SDK provides the JavaScript code required to insert and run Friendly Captcha v2 widgets directly on a website. The SDK is designed specifically for the Friendly Captcha v2 system, and users looking to integrate the earlier v1 version must use a separate, distinct SDK package. It operates entirely on the client side to render the captcha challenge within web pages.
Key Decision Points:
Version-Specific Integration: This SDK is explicitly built for Friendly Captcha v2, meaning projects on the older v1 system cannot use this package and must adopt the separate v1 SDK.
Client-Side Widget Injection: The code runs in the user's browser, focusing solely on inserting and managing the captcha widget on the website frontend.
Core Features:
Captcha Widget Insertion: Provides the mechanism to embed the Friendly Captcha challenge interface into a webpage.
Friendly Captcha v2 Support: Engineered to work exclusively with the v2 version of the Friendly Captcha service.
Use Cases:
Web Developers: Developers who need to add a Friendly Captcha v2 challenge to a website form or page to distinguish human users from bots.
Website Bot Protection: Website operators implementing Friendly Captcha’s specific proof-of-work approach to protect against automated submissions.
Open-Source Alternative Value:
This SDK offers a transparent, client-side integration path for the Friendly Captcha v2 service, allowing developers to directly embed and inspect the widget insertion code that runs in their users’ browsers. The open-source nature of the SDK means the embedding logic is available for review alongside the website’s own codebase.




