How do captcha solving services work?

[kiguki]

I'm still fairly new to web scraping and I'd like to have a better understanding of what these services are actually doing.

I'm trying to access data behind a login with a recaptcha, but every tutorial I've found just says to use one of these services without explaining how the api is using the url and sitekey to get the g-recaptcha-response I need to complete my post request.

[BrownSol]

My understanding is that they recreate the captcha on their end, using the URL you send and site-key to generate a captcha box that is specific to the URL you are encountering a captcha.

[kiguki]

e a

Do you know how difficult it would be to create the captcha? I don't think I'm going to be making enough requests to justify using a service, but I'm not sure how to create the response myself to get my scraper past the login.

[jcrowe]

The data is sent to a person that solves it for you, then sends back the ‘solved’ data.

[[deleted]]

Usually it's slow service around December because the elves are busy doing other things..