Absolutely ! Each of our API's has a Free tier that allows you to try the API's. The free tier has a restriction on the number of API calls you can make per month, but the speed and reliability of the API is the same for all tiers.
If you forgot your password, just go to the login page and click the "Reset Password" link.
Log into the Metadapi website and navigate to "My Account/My APIs". All your API subscriptions and key information will be available.