In SEO SpyGlass you can connect multiple third-party accounts to gather the data from them or check a number of metrics:
You can connect the GSC account to any project in SEO SpyGlass during the initial setup if you enable expert options and select Google Search Console among preferred backlink sources (the wizard will pop up asking you to enter the account details). If you don't have the account, you can use the in-built link to create one.
You can skip the step and connect the account anytime later under Preferences > Google Search Console.
The exact project URL can be checked under Preferences > Project Preferences, in the Project Website URL field. If you add no prefix as you initially enter the domain URL, https prefix is being added by default.
You can connect the Google Analytics account to any project in SEO SpyGlass to collect the backlinks from it and check the referral traffic stats for the backlinks in the project. You can do that during the initial project setup if you enable expert options and select Google Analytics among preferred backlink sources (the wizard will pop up asking you to connect the account). If you don't have the account, you can use the in-built link to create one.
Alternatively, you can connect the GA account anytime under Preferences > Google Analytics Account.
In the pop-up window, please enter your email or phone, then enter the password and click Next.
In the next step, please click to Allow SEO SpyGlass to access your GA account.
Finally, make sure to choose the proper account and website profile for the current project in the dropdowns, and click OK.
To check the Page Authority/Domain Authority metrics provided by Moz, for both your website and backlinks collected to the project, you'll need to add a Moz API key to the program.
This can be done under Preferences > Moz API Settings. The key you add there will be used for all projects in the program. You can add an existing key or get a free one using the inbuilt link.
To add a key, enter the Access ID and the Secret Key, select the key type and click OK.
You can add another key, remove the added one, or Check Status to make sure it's Active anytime, in the same Preferences > Moz API Settings menu.