diff --git a/addons/api/addon/adapters/user.js b/addons/api/addon/adapters/user.js
new file mode 100644
index 000000000..0d8242019
--- /dev/null
+++ b/addons/api/addon/adapters/user.js
@@ -0,0 +1,13 @@
+import ApplicationAdapter from './application';
+
+export default class UserAdapter extends ApplicationAdapter {
+
+  // =attributes
+
+  /**
+   * Users use the new, unprefixed pathing style.
+   * @override
+   */
+  hasScopePrefix = false;
+
+}
diff --git a/addons/api/addon/serializers/user.js b/addons/api/addon/serializers/user.js
new file mode 100644
index 000000000..7e9e54c21
--- /dev/null
+++ b/addons/api/addon/serializers/user.js
@@ -0,0 +1,13 @@
+import ApplicationSerializer from './application';
+
+export default class UserSerializer extends ApplicationSerializer {
+
+  // =attributes
+
+  /**
+   * Serialized the scope ID into the `scope_id` field.
+   * @type {boolean}
+   */
+  serializeScopeID = true;
+
+}
diff --git a/addons/api/app/adapters/user.js b/addons/api/app/adapters/user.js
new file mode 100644
index 000000000..78f340b99
--- /dev/null
+++ b/addons/api/app/adapters/user.js
@@ -0,0 +1 @@
+export { default } from 'api/adapters/user';
diff --git a/addons/api/app/serializers/user.js b/addons/api/app/serializers/user.js
new file mode 100644
index 000000000..5c5a92643
--- /dev/null
+++ b/addons/api/app/serializers/user.js
@@ -0,0 +1 @@
+export { default } from 'api/serializers/user';
diff --git a/addons/api/tests/unit/adapters/user-test.js b/addons/api/tests/unit/adapters/user-test.js
new file mode 100644
index 000000000..0332ed354
--- /dev/null
+++ b/addons/api/tests/unit/adapters/user-test.js
@@ -0,0 +1,12 @@
+import { module, test } from 'qunit';
+import { setupTest } from 'ember-qunit';
+
+module('Unit | Adapter | user', function(hooks) {
+  setupTest(hooks);
+
+  // Replace this with your real tests.
+  test('it exists', function(assert) {
+    let adapter = this.owner.lookup('adapter:user');
+    assert.ok(adapter);
+  });
+});
diff --git a/addons/api/tests/unit/models/base-test.js b/addons/api/tests/unit/models/base-test.js
index 40be071fe..cc89967a0 100644
--- a/addons/api/tests/unit/models/base-test.js
+++ b/addons/api/tests/unit/models/base-test.js
@@ -97,17 +97,17 @@ module('Unit | Model | base', function (hooks) {
     assert.expect(3);
     const store = this.owner.lookup('service:store');
     const model = store.createRecord('user', { scopeID: 'o_123' });
-    this.server.post('/v1/scopes/o_123/users', () => {
+    this.server.post('/v1/users', () => {
       assert.ok(true, 'Correctly scoped create record URL was requested.')
       return {};
     });
     await model.save();
-    this.server.patch('/v1/scopes/o_123/users', () => {
+    this.server.patch('/v1/users', () => {
       assert.ok(true, 'Correctly scoped update record URL was requested.')
       return {};
     });
     await model.save();
-    this.server.delete('/v1/scopes/o_123/users', () => {
+    this.server.delete('/v1/users', () => {
       assert.ok(true, 'Correctly scoped delete record URL was requested.')
       return {};
     });
@@ -120,17 +120,17 @@ module('Unit | Model | base', function (hooks) {
     const customScopeID = 'global';
     const scope = {scope_id: 'o_123'};
     const model = store.createRecord('user', { scope });
-    this.server.post('/v1/scopes/global/users', () => {
+    this.server.post('/v1/users', () => {
       assert.ok(true, 'Correctly scoped create record URL was requested.')
       return {};
     });
     await model.save({adapterOptions: {scopeID: customScopeID}});
-    this.server.patch('/v1/scopes/global/users', () => {
+    this.server.patch('/v1/users', () => {
       assert.ok(true, 'Correctly scoped update record URL was requested.')
       return {};
     });
     await model.save({adapterOptions: {scopeID: customScopeID}});
-    this.server.delete('/v1/scopes/global/users', () => {
+    this.server.delete('/v1/users', () => {
       assert.ok(true, 'Correctly scoped delete record URL was requested.')
       return {};
     });
@@ -143,7 +143,7 @@ module('Unit | Model | base', function (hooks) {
     const method = 'my-custom-method';
     const scope = {scope_id: 'o_123'};
     const model = store.createRecord('user', { scope });
-    this.server.post(`/v1/scopes/o_123/users:${method}`, () => {
+    this.server.post(`/v1/users:${method}`, () => {
       assert.ok(true, 'Correctly scoped create record URL was requested.')
       return {};
     });
diff --git a/addons/api/tests/unit/serializers/application-test.js b/addons/api/tests/unit/serializers/application-test.js
index e838a8da0..07385b071 100644
--- a/addons/api/tests/unit/serializers/application-test.js
+++ b/addons/api/tests/unit/serializers/application-test.js
@@ -25,7 +25,8 @@ module('Unit | Serializer | application', function (hooks) {
     const serializedRecord = record.serialize();
     assert.deepEqual(serializedRecord, {
       name: 'User',
-      description: 'Description'
+      description: 'Description',
+      scope_id: 'global'
     });
   });
 
@@ -33,6 +34,7 @@ module('Unit | Serializer | application', function (hooks) {
     assert.expect(2);
     const store = this.owner.lookup('service:store');
     const serializer = store.serializerFor('user');
+    serializer.serializeScopeID = false;
     const record = store.createRecord('user', {
       name: 'User',
       description: 'Description',
diff --git a/addons/api/tests/unit/serializers/user-test.js b/addons/api/tests/unit/serializers/user-test.js
new file mode 100644
index 000000000..b96a53b13
--- /dev/null
+++ b/addons/api/tests/unit/serializers/user-test.js
@@ -0,0 +1,23 @@
+import { module, test } from 'qunit';
+import { setupTest } from 'ember-qunit';
+
+module('Unit | Serializer | user', function(hooks) {
+  setupTest(hooks);
+
+  // Replace this with your real tests.
+  test('it exists', function(assert) {
+    let store = this.owner.lookup('service:store');
+    let serializer = store.serializerFor('user');
+
+    assert.ok(serializer);
+  });
+
+  test('it serializes records', function(assert) {
+    let store = this.owner.lookup('service:store');
+    let record = store.createRecord('user', {});
+
+    let serializedRecord = record.serialize();
+
+    assert.ok(serializedRecord);
+  });
+});
diff --git a/ui/core/app/routes/scopes/scope/groups/group/add-members.js b/ui/core/app/routes/scopes/scope/groups/group/add-members.js
index f3b8717a9..303a73662 100644
--- a/ui/core/app/routes/scopes/scope/groups/group/add-members.js
+++ b/ui/core/app/routes/scopes/scope/groups/group/add-members.js
@@ -24,10 +24,11 @@ export default class ScopesScopeGroupsGroupAddMembersRoute extends Route {
    * @return {Promise{GroupModel, [UserModel]}}
    */
   model() {
-    const { id: scopeID } = this.modelFor('scopes.scope');
+    const group = this.modelFor('scopes.scope.groups.group');
+    const { scopeID: scope_id } = group;
     return hash({
       group: this.modelFor('scopes.scope.groups.group'),
-      users: this.store.findAll('user', { adapterOptions: { scopeID } })
+      users: this.store.query('user', { scope_id })
     });
   }
 
diff --git a/ui/core/app/routes/scopes/scope/roles/role/add-principals.js b/ui/core/app/routes/scopes/scope/roles/role/add-principals.js
index 30f40366c..afa955a90 100644
--- a/ui/core/app/routes/scopes/scope/roles/role/add-principals.js
+++ b/ui/core/app/routes/scopes/scope/roles/role/add-principals.js
@@ -12,27 +12,17 @@ export default class ScopesScopeRolesRoleAddPrincipalsRoute extends Route {
 
   // =methods
 
-  /**
-   * Empty out any previously loaded users and groups.
-   * (collectively, principals).
-   */
-  beforeModel() {
-    this.store.unloadAll('user');
-    //this.store.unloadAll('group');
-  }
-
   /**
    * Returns the current role, all users, and all groups
    * @return {{role: RoleModel, users: [UserModel], groups: [GroupModel]}}
    */
   model() {
     const role = this.modelFor('scopes.scope.roles.role');
-    const { scopeID } = role;
-    const options = { adapterOptions: { scopeID } };
+    const { scopeID: scope_id } = role;
     return hash({
       role,
-      users: this.store.findAll('user', options),
-      groups: this.store.query('group', { scope_id: scopeID })
+      users: this.store.query('user', { scope_id }),
+      groups: this.store.query('group', { scope_id })
     });
   }
 
diff --git a/ui/core/app/routes/scopes/scope/users.js b/ui/core/app/routes/scopes/scope/users.js
index 20731c90f..3efffbde1 100644
--- a/ui/core/app/routes/scopes/scope/users.js
+++ b/ui/core/app/routes/scopes/scope/users.js
@@ -23,8 +23,8 @@ export default class ScopesScopeUsersRoute extends Route {
    * @return {Promise{[UserModel]}}
    */
   async model() {
-    const { id: scopeID } = this.modelFor('scopes.scope');
-    return this.store.findAll('user', { adapterOptions: { scopeID } });
+    const { id: scope_id } = this.modelFor('scopes.scope');
+    return this.store.query('user', { scope_id });
   }
 
   // =actions
diff --git a/ui/core/app/routes/scopes/scope/users/user.js b/ui/core/app/routes/scopes/scope/users/user.js
index ffbf19e7e..d26912707 100644
--- a/ui/core/app/routes/scopes/scope/users/user.js
+++ b/ui/core/app/routes/scopes/scope/users/user.js
@@ -10,9 +10,6 @@ export default class ScopesScopeUsersUserRoute extends Route {
    * @return {UserModel}
    */
   async model({ user_id }) {
-    const { id: scopeID } = this.modelFor('scopes.scope');
-    return this.store.findRecord('user', user_id, {
-      adapterOptions: { scopeID },
-    });
+    return this.store.findRecord('user', user_id);
   }
 }
diff --git a/ui/core/mirage/config.js b/ui/core/mirage/config.js
index 0446758fb..f3d185893 100644
--- a/ui/core/mirage/config.js
+++ b/ui/core/mirage/config.js
@@ -54,11 +54,47 @@ export default function() {
   this.post('/scopes/:id_method', deauthHandler);
 
   // IAM : Users
-  this.get('/scopes/:scope_id/users');
-  this.post('/scopes/:scope_id/users');
-  this.get('/scopes/:scope_id/users/:id');
-  this.patch('/scopes/:scope_id/users/:id');
-  this.del('/scopes/:scope_id/users/:id');
+  this.get('/users', ({ users }, { queryParams: { scope_id: scopeId } }) => {
+    return users.where({ scopeId });
+  });
+  this.post('/users');
+  this.get('/users/:id');
+  this.patch('/users/:id');
+  this.del('/users/:id');
+
+  // IAM: Groups
+  this.get('/groups', ({ groups }, { queryParams: { scope_id: scopeId } }) => {
+    return groups.where({ scopeId });
+  });
+  this.post('/groups');
+  this.get('/groups/:id');
+  this.patch('/groups/:id');
+  this.del('/groups/:id');
+  this.post('/groups/:idMethod', function ({ groups }, { params: { idMethod } }) {
+    const attrs = this.normalizedRequestAttrs();
+    const id = idMethod.split(':')[0];
+    const method = idMethod.split(':')[1];
+    const group = groups.find(id);
+    const updatedAttrs = {
+      version: attrs.version,
+      memberIds: group.memberIds
+    };
+    // If adding members, push them into the array
+    if (method === 'add-members') {
+      attrs.memberIds.forEach(id => {
+        if (!updatedAttrs.memberIds.includes(id)) {
+          updatedAttrs.memberIds.push(id);
+        }
+      });
+    }
+    // If deleting members, filter them out of the array
+    if (method === 'remove-members') {
+      updatedAttrs.memberIds = updatedAttrs.memberIds.filter(id => {
+        return !attrs.memberIds.includes(id);
+      });
+    }
+    return group.update(updatedAttrs);
+  });
 
   // IAM: Roles
   this.get('/scopes/:scope_id/roles');
@@ -106,40 +142,6 @@ export default function() {
     return role.update(updatedAttrs);
   });
 
-  // IAM: Groups
-  this.get('/groups', ({ groups }, { queryParams: { scope_id: scopeId } }) => {
-    return groups.where({ scopeId });
-  });
-  this.post('/groups');
-  this.get('/groups/:id');
-  this.patch('/groups/:id');
-  this.del('/groups/:id');
-  this.post('/groups/:idMethod', function ({ groups }, { params: { idMethod } }) {
-    const attrs = this.normalizedRequestAttrs();
-    const id = idMethod.split(':')[0];
-    const method = idMethod.split(':')[1];
-    const group = groups.find(id);
-    const updatedAttrs = {
-      version: attrs.version,
-      memberIds: group.memberIds
-    };
-    // If adding members, push them into the array
-    if (method === 'add-members') {
-      attrs.memberIds.forEach(id => {
-        if (!updatedAttrs.memberIds.includes(id)) {
-          updatedAttrs.memberIds.push(id);
-        }
-      });
-    }
-    // If deleting members, filter them out of the array
-    if (method === 'remove-members') {
-      updatedAttrs.memberIds = updatedAttrs.memberIds.filter(id => {
-        return !attrs.memberIds.includes(id);
-      });
-    }
-    return group.update(updatedAttrs);
-  });
-
   // Other resources
   // host-catalog
 
diff --git a/ui/core/mirage/models/user.js b/ui/core/mirage/models/user.js
new file mode 100644
index 000000000..08b1f5ad3
--- /dev/null
+++ b/ui/core/mirage/models/user.js
@@ -0,0 +1,7 @@
+import { Model, belongsTo } from 'ember-cli-mirage';
+
+export default Model.extend({
+
+  scope: belongsTo()
+
+});
diff --git a/ui/core/mirage/serializers/user.js b/ui/core/mirage/serializers/user.js
index 142cbf508..499b249eb 100644
--- a/ui/core/mirage/serializers/user.js
+++ b/ui/core/mirage/serializers/user.js
@@ -1,5 +1,22 @@
 import ApplicationSerializer from './application';
+import { underscore } from '@ember/string';
 
 export default ApplicationSerializer.extend({
-  modelName: 'user'
+  modelName: 'user',
+
+  keyForRelationshipId(relationshipName) {
+    return `${this._container.inflector.singularize(
+      underscore(relationshipName)
+    )}_id`;
+  },
+
+  _hashForModel(model) {
+    const json = ApplicationSerializer.prototype._hashForModel.apply(this, arguments);
+    json.scope = {
+      id: model.scope.id,
+      type: model.scope.type
+    };
+    return json;
+  }
+
 });
diff --git a/ui/core/tests/acceptance/bread-crumbs-test.js b/ui/core/tests/acceptance/bread-crumbs-test.js
index aafeecb5a..32382e582 100644
--- a/ui/core/tests/acceptance/bread-crumbs-test.js
+++ b/ui/core/tests/acceptance/bread-crumbs-test.js
@@ -42,7 +42,7 @@ module('Acceptance | breadcrumbs', function (hooks) {
       this.server.schema.scopes.where({ type: 'project' }).models[0];
 
     project = getProjectScope();
-    user = this.server.create('user');
+    user = this.server.create('user', { scope: orgScope });
     role = this.server.create('role');
     group = this.server.create('group', { scope: orgScope });
     hostCatalog = this.server.create('host-catalog', {
diff --git a/ui/core/tests/acceptance/users-test.js b/ui/core/tests/acceptance/users-test.js
index 55e4ac108..26e6b3c55 100644
--- a/ui/core/tests/acceptance/users-test.js
+++ b/ui/core/tests/acceptance/users-test.js
@@ -30,10 +30,7 @@ module('Acceptance | users', function (hooks) {
     );
 
     const user = this.server.create('user', {
-      scope: {
-        id: orgScope.id,
-        type: orgScope.type,
-      },
+      scope: orgScope
     });
 
     usersURL = `/scopes/${orgScope.id}/users`;
@@ -78,7 +75,7 @@ module('Acceptance | users', function (hooks) {
 
   test('saving a new user with invalid fields displays error messages', async function (assert) {
     assert.expect(2);
-    this.server.post('scopes/:scope_id/users', () => {
+    this.server.post('/users', () => {
       return new Response(
         400,
         {},
@@ -139,7 +136,7 @@ module('Acceptance | users', function (hooks) {
 
   test('saving an existing user with invalid fields displays error messages', async function (assert) {
     assert.expect(2);
-    this.server.patch('/scopes/:scope_id/users/:id', () => {
+    this.server.patch('/users/:id', () => {
       return new Response(
         400,
         {},
@@ -175,7 +172,7 @@ module('Acceptance | users', function (hooks) {
 
   test('errors are displayed when saving user fails', async function (assert) {
     assert.expect(1);
-    this.server.patch('/scopes/:scope_id/users/:id', () => {
+    this.server.patch('/users/:id', () => {
       return new Response(
         490,
         {},
@@ -198,7 +195,7 @@ module('Acceptance | users', function (hooks) {
 
   test('errors are displayed when user deletion fails', async function (assert) {
     assert.expect(1);
-    this.server.del('/scopes/:scope_id/users/:id', () => {
+    this.server.del('/users/:id', () => {
       return new Response(
         490,
         {},