So how long do you plan to or will be able to keep this service running?
You want to also explain how I am suppose to get my secret key back if I need it again? I went and signed up but I was only able to get my sitekey back not my secretkey where to I find both if I need them again.
Concerning hcaptcha.com – it is a competitor to Google recaptcha, with 15% of the captcha market worldwide. It is a severe business serving millions of clients. The keys you generated on hcaptcha.com can be retrieved there. You must log in, go to Sites, select the site and click the Settings button. Then, click the Try it Out button. You will see the Site key and the Secret key in the browser address bar.
If you stored the Site key and the Secret key in the plugin settings, you can get them from the database. Get the option hcaptcha_settings and find there ‘api_key’ and ‘secret_key’.
To clarify: here is the free WordPress plugin, which implements integration of hCaptcha service in WordPress core and different plugins. If you have questions concerning hCaptcha by itself (keys, free/paid tariffs, etc.), it is better to ask them on hcaptcha.com site.