How to send recaptcha2 verification correctly?

Question

reCAPTCHA

I wanted to remove the issuance of Google, but on the way there is recaptcha2. There are no problems with solving it. There are problems with sending it to Google.
I tried to see what headers and post parameters the browser sends and tried to do it all through the developer tool. Those. for the test, I solved the captcha in the browser, received a response, filled in the other required fields, and simply tried to send a request from the developer tool instead of the button in the "Submit" form. No positive results.
I didn't find anything useful on github.
I thought to sniff software that can correctly send recaptcha to Google, but ssl will not allow it.

Answer 1

there is still the time of dispatch is important, i.e. the session does not last long,
you can sniff everything