diff --git a/app/adapters/addon.ts b/app/adapters/addon.ts
new file mode 100644
index 00000000000..0d2e2a32e6f
--- /dev/null
+++ b/app/adapters/addon.ts
@@ -0,0 +1,10 @@
+import OsfAdapter from './osf-adapter';
+
+export default class AddonAdapter extends OsfAdapter {
+}
+
+declare module 'ember-data/types/registries/adapter' {
+    export default interface AdapterRegistry {
+        addon: AddonAdapter;
+    } // eslint-disable-line semi
+}
diff --git a/app/adapters/external-account.ts b/app/adapters/external-account.ts
new file mode 100644
index 00000000000..b3e85f1b5d1
--- /dev/null
+++ b/app/adapters/external-account.ts
@@ -0,0 +1,10 @@
+import OsfAdapter from './osf-adapter';
+
+export default class ExternalAccountAdapter extends OsfAdapter {
+}
+
+declare module 'ember-data/types/registries/adapter' {
+    export default interface AdapterRegistry {
+        'external-account': ExternalAccountAdapter;
+    } // eslint-disable-line semi
+}
diff --git a/app/adapters/node-addon.ts b/app/adapters/node-addon.ts
new file mode 100644
index 00000000000..d822a8d3aa8
--- /dev/null
+++ b/app/adapters/node-addon.ts
@@ -0,0 +1,10 @@
+import OsfAdapter from './osf-adapter';
+
+export default class NodeAddonAdapter extends OsfAdapter {
+}
+
+declare module 'ember-data/types/registries/adapter' {
+    export default interface AdapterRegistry {
+        'node-addon': NodeAddonAdapter;
+    } // eslint-disable-line semi
+}
diff --git a/app/adapters/user-addon.ts b/app/adapters/user-addon.ts
new file mode 100644
index 00000000000..7cf6a2c6c49
--- /dev/null
+++ b/app/adapters/user-addon.ts
@@ -0,0 +1,10 @@
+import OsfAdapter from './osf-adapter';
+
+export default class UserAddonAdapter extends OsfAdapter {
+}
+
+declare module 'ember-data/types/registries/adapter' {
+    export default interface AdapterRegistry {
+        'user-addon': UserAddonAdapter;
+    } // eslint-disable-line semi
+}
diff --git a/app/models/addon.ts b/app/models/addon.ts
new file mode 100644
index 00000000000..a915ed62fcb
--- /dev/null
+++ b/app/models/addon.ts
@@ -0,0 +1,14 @@
+import { attr } from '@ember-data/model';
+
+import OsfModel from './osf-model';
+
+export default class AddonModel extends OsfModel {
+    @attr('string') name!: string;
+    @attr('array') categories!: string[];
+}
+
+declare module 'ember-data/types/registries/model' {
+    export default interface ModelRegistry {
+        addon: AddonModel;
+    } // eslint-disable-line semi
+}
diff --git a/app/models/external-accounts.ts b/app/models/external-accounts.ts
new file mode 100644
index 00000000000..eb31df7eec9
--- /dev/null
+++ b/app/models/external-accounts.ts
@@ -0,0 +1,15 @@
+import { attr } from '@ember-data/model';
+
+import OsfModel from './osf-model';
+
+export default class ExternalAccountsModel extends OsfModel {
+    @attr('string') provider!: string;
+    @attr('fixstring') profileUrl?: string;
+    @attr('fixstring') displayName!: string;
+}
+
+declare module 'ember-data/types/registries/model' {
+    export default interface ModelRegistry {
+        'external-account': ExternalAccountsModel;
+    } // eslint-disable-line semi
+}
diff --git a/app/models/node-addon.ts b/app/models/node-addon.ts
new file mode 100644
index 00000000000..6da8c330800
--- /dev/null
+++ b/app/models/node-addon.ts
@@ -0,0 +1,17 @@
+import { attr } from '@ember-data/model';
+
+import OsfModel from './osf-model';
+
+export default class NodeAddonModel extends OsfModel {
+    @attr('boolean') nodeHasAuth!: boolean;
+    @attr('boolean') configured!: boolean;
+    @attr('string') externalAccountId!: string;
+    @attr('string') folderId?: string;
+    @attr('string') folderPath?: string;
+}
+
+declare module 'ember-data/types/registries/model' {
+    export default interface ModelRegistry {
+        'node-addon': NodeAddonModel;
+    } // eslint-disable-line semi
+}
diff --git a/app/models/user-addon.ts b/app/models/user-addon.ts
new file mode 100644
index 00000000000..e308c632253
--- /dev/null
+++ b/app/models/user-addon.ts
@@ -0,0 +1,19 @@
+import { AsyncHasMany, attr, hasMany } from '@ember-data/model';
+
+import ExternalAccountsModel from 'ember-osf-web/models/external-accounts';
+
+import OsfModel from './osf-model';
+
+
+export default class UserAddonModel extends OsfModel {
+    @attr('boolean') userHasAuth!: boolean;
+
+    @hasMany('external-accounts', { inverse: null })
+    externalAccounts!: AsyncHasMany<ExternalAccountsModel> & ExternalAccountsModel[];
+}
+
+declare module 'ember-data/types/registries/model' {
+    export default interface ModelRegistry {
+        'user-addon': UserAddonModel;
+    } // eslint-disable-line semi
+}
diff --git a/app/serializers/addon.ts b/app/serializers/addon.ts
new file mode 100644
index 00000000000..aa83937b2cc
--- /dev/null
+++ b/app/serializers/addon.ts
@@ -0,0 +1,10 @@
+import OsfSerializer from './osf-serializer';
+
+export default class AddonSerializer extends OsfSerializer {
+}
+
+declare module 'ember-data/types/registries/serializer' {
+    export default interface SerializerRegistry {
+        addon: AddonSerializer;
+    } // eslint-disable-line semi
+}
diff --git a/app/serializers/external-account.ts b/app/serializers/external-account.ts
new file mode 100644
index 00000000000..81eed717317
--- /dev/null
+++ b/app/serializers/external-account.ts
@@ -0,0 +1,10 @@
+import OsfSerializer from './osf-serializer';
+
+export default class ExternalAccountSerializer extends OsfSerializer {
+}
+
+declare module 'ember-data/types/registries/serializer' {
+    export default interface SerializerRegistry {
+        'external-account': ExternalAccountSerializer;
+    } // eslint-disable-line semi
+}
diff --git a/app/serializers/node-addon.ts b/app/serializers/node-addon.ts
new file mode 100644
index 00000000000..eef5e114dd7
--- /dev/null
+++ b/app/serializers/node-addon.ts
@@ -0,0 +1,10 @@
+import OsfSerializer from './osf-serializer';
+
+export default class NodeAddonSerializer extends OsfSerializer {
+}
+
+declare module 'ember-data/types/registries/serializer' {
+    export default interface SerializerRegistry {
+        'node-addon': NodeAddonSerializer;
+    } // eslint-disable-line semi
+}
diff --git a/app/serializers/user-addon.ts b/app/serializers/user-addon.ts
new file mode 100644
index 00000000000..78ced98caa6
--- /dev/null
+++ b/app/serializers/user-addon.ts
@@ -0,0 +1,10 @@
+import OsfSerializer from './osf-serializer';
+
+export default class UserAddonSerializer extends OsfSerializer {
+}
+
+declare module 'ember-data/types/registries/serializer' {
+    export default interface SerializerRegistry {
+        'user-addon': UserAddonSerializer;
+    } // eslint-disable-line semi
+}