Some pools use for access to their information via API and every user has own API KEY.
For pools coinmine.pl, suprnova.cc, miningpoolhub.com you can find your API key here:
1. Select pool
2. Log in
3. Go to the Account section
4. Edit Account - and there is no such data. There's no api key!!!
Where to get it??? I looked through all the tabs on the pool, all the settings. Api que is not anywhere!