diff --git a/addons/api/addon/adapters/application.js b/addons/api/addon/adapters/application.js
index 214b80d3c..bfc109b3f 100644
--- a/addons/api/addon/adapters/application.js
+++ b/addons/api/addon/adapters/application.js
@@ -71,10 +71,16 @@ export default class ApplicationAdapter extends RESTAdapter.extend(
    */
   urlPrefix(path, parentURL, modelName, id, snapshot={}) {
     const prefix = super.urlPrefix(...arguments);
-    let scopePath = getWithDefault(snapshot, 'adapterOptions.scopeID', '');
-    // Ensure a slash is added between prefix + scope path if needed.
-    if (scopePath && prefix.charAt(prefix.length - 1) !== '/') {
-      scopePath = `/scopes/${scopePath}`;
+    const isScope = modelName === 'scope';
+    let scopePath = '';
+    // Only non-scope resources need a scope path, since scope resources
+    // aren't technically "scoped" the same way.
+    if (!isScope) {
+      scopePath = getWithDefault(snapshot, 'adapterOptions.scopeID', '');
+      // Ensure a slash is added between prefix + scope path if needed.
+      if (scopePath && prefix.charAt(prefix.length - 1) !== '/') {
+        scopePath = `/scopes/${scopePath}`;
+      }
     }
     return `${prefix}${scopePath}`;
   }
diff --git a/addons/api/addon/serializers/application.js b/addons/api/addon/serializers/application.js
index 84bcc6ed5..c839eb78c 100644
--- a/addons/api/addon/serializers/application.js
+++ b/addons/api/addon/serializers/application.js
@@ -1,5 +1,6 @@
 import RESTSerializer from '@ember-data/serializer/rest';
 import { underscore } from '@ember/string';
+import { get } from '@ember/object';
 import { copy } from 'ember-copy';
 
 /**
@@ -117,7 +118,7 @@ export default class ApplicationSerializer extends RESTSerializer {
       primaryModelClass.modelName
     );
     // Copy the unrooted payload under the expected root key name.
-    transformedPayload[payloadKey] = copy(payload);
+    transformedPayload[payloadKey] = copy(payload, true);
     // Return the result of normalizing the transformed payload.
     return super.normalizeSingleResponse(
       store,
@@ -128,4 +129,21 @@ export default class ApplicationSerializer extends RESTSerializer {
     );
   }
 
+  /**
+   * One consequence of using model fragments to represent the embedded scope
+   * is that they cannot have `id` fields.  We still need to know scope IDs,
+   * so we copy the `scope.id` value into the `scope.scope_id` field.
+   * @override
+   * @see FragmentScope
+   * @param {Model} typeClass
+   * @param {Object} hash
+   * @return {Object}
+   */
+  normalize(typeClass, hash) {
+    const normalizedHash = copy(hash, true);
+    const scopeID = get(normalizedHash, 'scope.id');
+    if (scopeID) normalizedHash.scope.scope_id = scopeID;
+    return super.normalize(typeClass, normalizedHash);
+  }
+
 }
diff --git a/addons/api/tests/unit/adapters/application-test.js b/addons/api/tests/unit/adapters/application-test.js
index 4ea1b2ec5..bea9b215c 100644
--- a/addons/api/tests/unit/adapters/application-test.js
+++ b/addons/api/tests/unit/adapters/application-test.js
@@ -35,6 +35,16 @@ module('Unit | Adapter | application', function (hooks) {
     assert.equal(prefix, `v1/scopes/${scopeID}`);
   });
 
+  test('it does not prefixes URLs with `scopeID` for scope resources', function (assert) {
+    assert.expect(1);
+    const scopeID = 'global';
+    const adapter = this.owner.lookup('adapter:application');
+    const prefix = adapter.urlPrefix(null, null, 'scope', null, {
+      adapterOptions: {scopeID}
+    });
+    assert.equal(prefix, `v1`);
+  });
+
   test('it generates correct default URL suffixes', function (assert) {
     assert.expect(1);
     const adapter = this.owner.lookup('adapter:application');
diff --git a/addons/api/tests/unit/serializers/application-test.js b/addons/api/tests/unit/serializers/application-test.js
index 83c75341b..4769cfa3f 100644
--- a/addons/api/tests/unit/serializers/application-test.js
+++ b/addons/api/tests/unit/serializers/application-test.js
@@ -36,9 +36,9 @@ module('Unit | Serializer | application', function (hooks) {
     const userModelClass = store.createRecord('user').constructor;
     const payload = {
       items: [
-        { id: 1, name: 'User 1' },
-        { id: 2, name: 'User 2' },
-        { id: 3, name: 'User 3' },
+        { id: 1, name: 'User 1', scope: { id: 'o_123' } },
+        { id: 2, name: 'User 2', scope: { id: 'o_123' } },
+        { id: 3, name: 'User 3', scope: { id: 'o_123' } },
       ],
     };
     const normalizedArray = serializer.normalizeArrayResponse(
@@ -52,19 +52,19 @@ module('Unit | Serializer | application', function (hooks) {
         {
           id: '1',
           type: 'user',
-          attributes: { name: 'User 1' },
+          attributes: { name: 'User 1', scope: { scope_id: 'o_123' } },
           relationships: {},
         },
         {
           id: '2',
           type: 'user',
-          attributes: { name: 'User 2' },
+          attributes: { name: 'User 2', scope: { scope_id: 'o_123' } },
           relationships: {},
         },
         {
           id: '3',
           type: 'user',
-          attributes: { name: 'User 3' },
+          attributes: { name: 'User 3', scope: { scope_id: 'o_123' } },
           relationships: {},
         },
       ],
@@ -79,6 +79,7 @@ module('Unit | Serializer | application', function (hooks) {
     const payload = {
       id: '1',
       name: 'User 1',
+      scope: { id: 'o_123' }
     };
     const normalized = serializer.normalizeSingleResponse(
       store,
@@ -90,7 +91,7 @@ module('Unit | Serializer | application', function (hooks) {
       data: {
         id: '1',
         type: 'user',
-        attributes: { name: 'User 1' },
+        attributes: { name: 'User 1', scope: { scope_id: 'o_123' } },
         relationships: {},
       },
     });