Awesome that you want to give TIBCO® Cloud Integration a try! It's very easy to sign up for a trial plan, which gives you 30 days to kick the tires but all you really need is 15 minutes and you'll have your first API created and deployed. To sign up for the trial you can follow these steps
Fill in the form on http://cloud.tibco.com/free-trial to get your 30-day free trial started. After that you'll receive some emails from us.
Activating your TIBCO Account
TIBCO® Cloud Integration uses TIBCO Accounts to let you sign in. The first email you'll get is to activate your TIBCO Account. This account can also be used to sign in to the TIBCO Community and other TIBCO websites. If you already have a TIBCO Account associated with the email address you're requesting the trial with you'll not receive this email though.
As soon as you click on the link to Activate your TIBCO Account you'll be asked to create a password so you can sign in to TIBCO® Cloud Integration and other TIBCO services as well.
Fill in your password and click Activate your TIBCO Account.
As soon as that is done you'll see a nice blue button to Sign in to TIBCO Cloud Integration
(to make things easy, we'll also send you an email that your account has been activated and a link to log in to TIBCO Cloud Integration)
The other email you'll have received is a welcoming email with some links to get started!