NoComply, hello, thanks for responce. Already fixed secret key problem. It caused because generated key wasn't passed to validator.
Confirmed, working nicely now.
One request: would it be possible to add an API endpoint to get WMP's current XMR rate. The rate indicated on the dashboard appears to fluctuate (as expected) but it feels inefficient to poll some external service and do the math to adjust for differences if the external XMR rate differs from WMPs rate - exchange rates of exchange rates gets messy. Something like:
https://webminepool.com/api/{secret_key}/get_wmc_rate
Or just include WMPs XMR rate with other api responses, such as /user_hashes/{username}, as that is likely to be polled fairly regularly and will save API load.