All requests require HTTPS.
Pass your application’s API key in the
x-api-key HTTP header. API keys are specific to the production and test environment specified for the key.
Backwards-incompatible API changes will be introduced in separate versions. Critical bug fixes will be applied to previous versions until support for those versions is retired. It is recommended that you migrate to the latest version available of the API as quickly as possible in order to ensure that you benefit from the latest features and bug fixes.