diff --git a/addons/api/mirage/factories/credential.js b/addons/api/mirage/factories/credential.js
index e257205b3..eac680c96 100644
--- a/addons/api/mirage/factories/credential.js
+++ b/addons/api/mirage/factories/credential.js
@@ -3,9 +3,18 @@ import { faker } from '@faker-js/faker';
 import permissions from '../helpers/permissions';
 import generatedId from '../helpers/id';
 
+const types = ['username_password', 'ssh_private_key'];
+
 export default factory.extend({
-  id: () => generatedId('cred_'),
-  type: 'username_password',
+  type: (i) => types[i % types.length],
+  id() {
+    switch (this.type) {
+      case 'ssh_private_key':
+        return generatedId('credspk_');
+      case 'username_password':
+        return generatedId('credup_');
+    }
+  },
   authorized_actions: () =>
     permissions.authorizedActionsFor('credential') || [
       'no-op',
diff --git a/addons/api/mirage/serializers/credential.js b/addons/api/mirage/serializers/credential.js
index f028e0a86..243255d4d 100644
--- a/addons/api/mirage/serializers/credential.js
+++ b/addons/api/mirage/serializers/credential.js
@@ -10,9 +10,11 @@ export default ApplicationSerializer.extend({
     );
     json.credential_store_id = model.credentialStoreId;
 
-    // in a real API, the password field is not returned
-    // so we delete it from the response
+    // in a real API, the password, private_key, and passphrase
+    // field is not returned so we delete it from the response
     delete json.attributes?.password;
+    delete json.attributes?.private_key;
+    delete json.attributes?.passphrase;
 
     return json;
   },
diff --git a/addons/core/translations/resources/en-us.yaml b/addons/core/translations/resources/en-us.yaml
index 8836135ae..b3bb2c7be 100644
--- a/addons/core/translations/resources/en-us.yaml
+++ b/addons/core/translations/resources/en-us.yaml
@@ -392,6 +392,7 @@ credential:
       description: No Credentials available in this credential store.
   types:
     username_password: Username & Password
+    ssh_private_key: Username & Key Pair
   help:
     username_password: This host requires a username and password to connect.
 scope: