**To get the base path mappings for a custom domain name** Command:: aws apigateway get-base-path-mappings --domain-name subdomain.domain.tld Output:: { "items": [ { "basePath": "(none)", "restApiId": "1234w4321e", "stage": "dev" }, { "basePath": "v1", "restApiId": "1234w4321e", "stage": "api" } ] }