Step 1. Go to openexchangerates.org website. Click "Sign up" on the main page.
Step 2. Choose 'Free plan' if you need only base currency USD and up to 1 000 requests/month
Step 3. Fill out the form and click the 'Continue' button.
The next "Add backup contact information" screen is optional.
Step 4. You're successfully signed in. Go to the 'App IDs' page. Here you can find the API token. You may copy and use it in the OWOX BI pipeline settings.