Relationship between service resources
An API gateway is an interface for interacting with services in Yandex.Cloud or the internet.
API gateways are set in a declarative way using specifications. A specification is a JSON or YAML file with an API gateway description based on the OpenAPI 3.0 standard. In API Gateway, the specification is supplemented with extensions that you can use for integrating with other cloud platforms.
API Gateway is integrated with the Certificate Manager domain management system.
You can use domains with confirmed rights when accessing the API. In this case, a certificate linked to the domain is used to provide a TLS connection.
For more information about domains, see Integration with services from Yandex.Cloud.