C# - Captcha Service is a lightweight .NET library designed to interact with CAPTCHA-solving services such as Rucaptcha and Anti-Captcha, making it easier to integrate automated CAPTCHA solutions into your C# applications.

Currently, the library supports image-based CAPTCHAs, text CAPTCHAs, reCAPTCHA V2/V3, FunCaptcha, GeeTest, SquareNetText, and even Recaptcha V1—depending on the provider selected.

It supports Rucaptcha and Anti-Captcha, each with its own task types and capabilities.

Out-of-the-box, no—but CaptchaAI can be manually integrated via HTTP request wrappers. CaptchaAI supports base64, userrecaptcha, and direct image solving, making it an ideal addition, especially since Rucaptcha lacks support for FunCaptcha or complex image-to-text workflows. Learn more: CaptchaAI Docs

Not yet. The GitHub page mentions plans to implement async support in future updates.

The project is open source and currently free to use.

Yes, both Anti-Captcha’s proxyless tasks (like NoCaptchaTaskProxyless and FunCaptchaTaskProxyless) are supported where available.

Yes. For example, Rucaptcha does not support GeeTest or SquareNetText, while Anti-Captcha lacks a transparent usage dashboard. CaptchaAI offers a simpler and faster way to solve image-based CAPTCHAs with JSON support, which is missing in parts of this library.

Yes, both providers support getBalance() to check your current balance.

No. This library is a backend utility and does not include a visual dashboard. You interact with it programmatically through C# code.