Admin user must first sign up or log in for an Xweather Flex subscription with a free developer account using company name and email. See:
The Xweather Flex subscription with a free developer account is then updated to a 250,000 accesses/month plan for an Xweather Optimize admin user within 30 days after signing up to the service with no additional subscription fee.
To register your application with the Weather API to receive the required ID and secret key, see: