You can easily register for test credentials by signing up here. The signup form will ask you for a company name, email and password. You'll need this information to access the test portal where you'll be able to check the bookings you've made and check availability.
Once you've created your account you'll be shown a screen that looks like this. The API Key will only be used for testing so doesn't need to be kept secure.
The API endpoint and key you see on that page can be used for testing your integration with a fictional supplier we have created called EdinExplore.
With the logins you've just created you can click here to login to the EdinExplore agent portal. You can get to the agent portal here. It will look like this:
On the "Bookings" tab you'll be able to see all the bookings you've both through the reseller portal but also via the API. This should make it easier to check whether the fields you're setting are correct and if your api calls are being registered correctly.
In addition to the booking portal we also provide a tab "API Logs" which will give you a list of all the API requests we have received from your credentials.
Clicking on one of the requests will then bring up a helpful request/response window.