Invalid redirect_uri

Hello,

Can you please tell me, what redirect url have to use in my api application?

Because when i am access below url with default redirect url, it's giving error "Invalid rediredt url"

https://api.cc.email/v3/idfed?client_id=df543041-97e1-44b4-9913-7a49c347604a&redirect_uri=https%3A%2F%2Flocalhost&response_type=code&scope=account_read+account_update+contact_data

My current website is https://mailkingusa.com/