**To get information about a custom authorizer** The following ``describe-authorizer`` example displays details for the specified custom authorizer. :: aws iot describe-authorizer \ --authorizer-name CustomAuthorizer Output:: { "authorizerDescription": { "authorizerName": "CustomAuthorizer", "authorizerArn": "arn:aws:iot:us-west-2:123456789012:authorizer/CustomAuthorizer", "authorizerFunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:CustomAuthorizerFunction", "tokenKeyName": "MyAuthToken", "tokenSigningPublicKeys": { "FIRST_KEY": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1uJOB4lQPgG/lM6ZfIwo\nZ+7ENxAio9q6QD4FFqjGZsvjtYwjoe1RKK0U8Eq9xb5O3kRSmyIwTzwzm/f4Gf0Y\nZUloJ+t3PUUwHrmbYTAgTrCUgRFygjfgVwGCPs5ZAX4Eyqt5cr+AIHIiUDbxSa7p\nzwOBKPeic0asNJpqT8PkBbRaKyleJh5oo81NDHHmVtbBm5A5YiJjqYXLaVAowKzZ\n+GqsNvAQ9Jy1wI2VrEa1OfL8flDB/BJLm7zjpfPOHDJQgID0XnZwAlNnZcOhCwIx\n50g2LW2Oy9R/dmqtDmJiVP97Z4GykxPvwlYHrUXY0iW1R3AR/Ac1NhCTGZMwVDB1\nlQIDAQAB\n-----END PUBLIC KEY-----" }, "status": "ACTIVE", "creationDate": 1571245658.069, "lastModifiedDate": 1571245658.069 } } For more information, see `DescribeAuthorizer <https://docs.aws.amazon.com/iot/latest/apireference/API_DescribeAuthorizer.html>`__ in the *AWS IoT API Reference*.