diff --git a/addons/api/README.md b/addons/api/README.md
index d0c3f3b2e..66ee38911 100644
--- a/addons/api/README.md
+++ b/addons/api/README.md
@@ -23,6 +23,15 @@ This addon contains the API data access layer for Boundary.
 Add this addon to an Ember application's `devDependencies` as:
 `"api": "*"`, for applications included in this monorepo.
 
+Since this addon also includes Mirage mocks, be sure to install
+`ember-cli-mirage` and add the following config to your UI project:
+
+```js
+'ember-cli-mirage': {
+  directory: '../../addons/api/mirage'
+}
+```
+
 ## Installation
 
 See monorepo README for installation instructions.
diff --git a/ui/admin/mirage/config.js b/addons/api/mirage/config.js
similarity index 100%
rename from ui/admin/mirage/config.js
rename to addons/api/mirage/config.js
diff --git a/ui/admin/mirage/factories/account.js b/addons/api/mirage/factories/account.js
similarity index 100%
rename from ui/admin/mirage/factories/account.js
rename to addons/api/mirage/factories/account.js
diff --git a/ui/admin/mirage/factories/auth-method.js b/addons/api/mirage/factories/auth-method.js
similarity index 100%
rename from ui/admin/mirage/factories/auth-method.js
rename to addons/api/mirage/factories/auth-method.js
diff --git a/ui/admin/mirage/factories/group.js b/addons/api/mirage/factories/group.js
similarity index 100%
rename from ui/admin/mirage/factories/group.js
rename to addons/api/mirage/factories/group.js
diff --git a/ui/admin/mirage/factories/host-catalog.js b/addons/api/mirage/factories/host-catalog.js
similarity index 100%
rename from ui/admin/mirage/factories/host-catalog.js
rename to addons/api/mirage/factories/host-catalog.js
diff --git a/ui/admin/mirage/factories/host-set.js b/addons/api/mirage/factories/host-set.js
similarity index 100%
rename from ui/admin/mirage/factories/host-set.js
rename to addons/api/mirage/factories/host-set.js
diff --git a/ui/admin/mirage/factories/host.js b/addons/api/mirage/factories/host.js
similarity index 100%
rename from ui/admin/mirage/factories/host.js
rename to addons/api/mirage/factories/host.js
diff --git a/ui/admin/mirage/factories/role.js b/addons/api/mirage/factories/role.js
similarity index 100%
rename from ui/admin/mirage/factories/role.js
rename to addons/api/mirage/factories/role.js
diff --git a/ui/admin/mirage/factories/scope.js b/addons/api/mirage/factories/scope.js
similarity index 100%
rename from ui/admin/mirage/factories/scope.js
rename to addons/api/mirage/factories/scope.js
diff --git a/ui/admin/mirage/factories/session.js b/addons/api/mirage/factories/session.js
similarity index 100%
rename from ui/admin/mirage/factories/session.js
rename to addons/api/mirage/factories/session.js
diff --git a/ui/admin/mirage/factories/target.js b/addons/api/mirage/factories/target.js
similarity index 100%
rename from ui/admin/mirage/factories/target.js
rename to addons/api/mirage/factories/target.js
diff --git a/ui/admin/mirage/factories/user.js b/addons/api/mirage/factories/user.js
similarity index 100%
rename from ui/admin/mirage/factories/user.js
rename to addons/api/mirage/factories/user.js
diff --git a/ui/admin/mirage/generated/factories/account.js b/addons/api/mirage/generated/factories/account.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/account.js
rename to addons/api/mirage/generated/factories/account.js
diff --git a/ui/admin/mirage/generated/factories/auth-method.js b/addons/api/mirage/generated/factories/auth-method.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/auth-method.js
rename to addons/api/mirage/generated/factories/auth-method.js
diff --git a/ui/admin/mirage/generated/factories/group.js b/addons/api/mirage/generated/factories/group.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/group.js
rename to addons/api/mirage/generated/factories/group.js
diff --git a/ui/admin/mirage/generated/factories/host-catalog.js b/addons/api/mirage/generated/factories/host-catalog.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/host-catalog.js
rename to addons/api/mirage/generated/factories/host-catalog.js
diff --git a/ui/admin/mirage/generated/factories/host-set.js b/addons/api/mirage/generated/factories/host-set.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/host-set.js
rename to addons/api/mirage/generated/factories/host-set.js
diff --git a/ui/admin/mirage/generated/factories/host.js b/addons/api/mirage/generated/factories/host.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/host.js
rename to addons/api/mirage/generated/factories/host.js
diff --git a/ui/admin/mirage/generated/factories/org.js b/addons/api/mirage/generated/factories/org.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/org.js
rename to addons/api/mirage/generated/factories/org.js
diff --git a/ui/admin/mirage/generated/factories/project.js b/addons/api/mirage/generated/factories/project.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/project.js
rename to addons/api/mirage/generated/factories/project.js
diff --git a/ui/admin/mirage/generated/factories/role.js b/addons/api/mirage/generated/factories/role.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/role.js
rename to addons/api/mirage/generated/factories/role.js
diff --git a/ui/admin/mirage/generated/factories/scope.js b/addons/api/mirage/generated/factories/scope.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/scope.js
rename to addons/api/mirage/generated/factories/scope.js
diff --git a/ui/admin/mirage/generated/factories/session.js b/addons/api/mirage/generated/factories/session.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/session.js
rename to addons/api/mirage/generated/factories/session.js
diff --git a/ui/admin/mirage/generated/factories/target.js b/addons/api/mirage/generated/factories/target.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/target.js
rename to addons/api/mirage/generated/factories/target.js
diff --git a/ui/admin/mirage/generated/factories/user.js b/addons/api/mirage/generated/factories/user.js
similarity index 100%
rename from ui/admin/mirage/generated/factories/user.js
rename to addons/api/mirage/generated/factories/user.js
diff --git a/ui/admin/mirage/models/account.js b/addons/api/mirage/models/account.js
similarity index 100%
rename from ui/admin/mirage/models/account.js
rename to addons/api/mirage/models/account.js
diff --git a/ui/admin/mirage/models/auth-method.js b/addons/api/mirage/models/auth-method.js
similarity index 100%
rename from ui/admin/mirage/models/auth-method.js
rename to addons/api/mirage/models/auth-method.js
diff --git a/ui/admin/mirage/models/group.js b/addons/api/mirage/models/group.js
similarity index 100%
rename from ui/admin/mirage/models/group.js
rename to addons/api/mirage/models/group.js
diff --git a/ui/admin/mirage/models/host-catalog.js b/addons/api/mirage/models/host-catalog.js
similarity index 100%
rename from ui/admin/mirage/models/host-catalog.js
rename to addons/api/mirage/models/host-catalog.js
diff --git a/ui/admin/mirage/models/host-set.js b/addons/api/mirage/models/host-set.js
similarity index 100%
rename from ui/admin/mirage/models/host-set.js
rename to addons/api/mirage/models/host-set.js
diff --git a/ui/admin/mirage/models/host.js b/addons/api/mirage/models/host.js
similarity index 100%
rename from ui/admin/mirage/models/host.js
rename to addons/api/mirage/models/host.js
diff --git a/ui/admin/mirage/models/role.js b/addons/api/mirage/models/role.js
similarity index 100%
rename from ui/admin/mirage/models/role.js
rename to addons/api/mirage/models/role.js
diff --git a/ui/admin/mirage/models/session.js b/addons/api/mirage/models/session.js
similarity index 100%
rename from ui/admin/mirage/models/session.js
rename to addons/api/mirage/models/session.js
diff --git a/ui/admin/mirage/models/target.js b/addons/api/mirage/models/target.js
similarity index 100%
rename from ui/admin/mirage/models/target.js
rename to addons/api/mirage/models/target.js
diff --git a/ui/admin/mirage/models/user.js b/addons/api/mirage/models/user.js
similarity index 100%
rename from ui/admin/mirage/models/user.js
rename to addons/api/mirage/models/user.js
diff --git a/ui/admin/mirage/route-handlers/auth.js b/addons/api/mirage/route-handlers/auth.js
similarity index 100%
rename from ui/admin/mirage/route-handlers/auth.js
rename to addons/api/mirage/route-handlers/auth.js
diff --git a/ui/admin/mirage/scenarios/default.js b/addons/api/mirage/scenarios/default.js
similarity index 100%
rename from ui/admin/mirage/scenarios/default.js
rename to addons/api/mirage/scenarios/default.js
diff --git a/ui/admin/mirage/serializers/account.js b/addons/api/mirage/serializers/account.js
similarity index 100%
rename from ui/admin/mirage/serializers/account.js
rename to addons/api/mirage/serializers/account.js
diff --git a/ui/admin/mirage/serializers/application.js b/addons/api/mirage/serializers/application.js
similarity index 100%
rename from ui/admin/mirage/serializers/application.js
rename to addons/api/mirage/serializers/application.js
diff --git a/ui/admin/mirage/serializers/auth-method.js b/addons/api/mirage/serializers/auth-method.js
similarity index 100%
rename from ui/admin/mirage/serializers/auth-method.js
rename to addons/api/mirage/serializers/auth-method.js
diff --git a/ui/admin/mirage/serializers/group.js b/addons/api/mirage/serializers/group.js
similarity index 100%
rename from ui/admin/mirage/serializers/group.js
rename to addons/api/mirage/serializers/group.js
diff --git a/ui/admin/mirage/serializers/host-catalog.js b/addons/api/mirage/serializers/host-catalog.js
similarity index 100%
rename from ui/admin/mirage/serializers/host-catalog.js
rename to addons/api/mirage/serializers/host-catalog.js
diff --git a/ui/admin/mirage/serializers/host-set.js b/addons/api/mirage/serializers/host-set.js
similarity index 100%
rename from ui/admin/mirage/serializers/host-set.js
rename to addons/api/mirage/serializers/host-set.js
diff --git a/ui/admin/mirage/serializers/host.js b/addons/api/mirage/serializers/host.js
similarity index 100%
rename from ui/admin/mirage/serializers/host.js
rename to addons/api/mirage/serializers/host.js
diff --git a/ui/admin/mirage/serializers/role.js b/addons/api/mirage/serializers/role.js
similarity index 100%
rename from ui/admin/mirage/serializers/role.js
rename to addons/api/mirage/serializers/role.js
diff --git a/ui/admin/mirage/serializers/scope.js b/addons/api/mirage/serializers/scope.js
similarity index 100%
rename from ui/admin/mirage/serializers/scope.js
rename to addons/api/mirage/serializers/scope.js
diff --git a/ui/admin/mirage/serializers/session.js b/addons/api/mirage/serializers/session.js
similarity index 100%
rename from ui/admin/mirage/serializers/session.js
rename to addons/api/mirage/serializers/session.js
diff --git a/ui/admin/mirage/serializers/target.js b/addons/api/mirage/serializers/target.js
similarity index 100%
rename from ui/admin/mirage/serializers/target.js
rename to addons/api/mirage/serializers/target.js
diff --git a/ui/admin/mirage/serializers/user.js b/addons/api/mirage/serializers/user.js
similarity index 100%
rename from ui/admin/mirage/serializers/user.js
rename to addons/api/mirage/serializers/user.js
diff --git a/ui/admin/config/environment.js b/ui/admin/config/environment.js
index 1c832b45b..c071cd17c 100644
--- a/ui/admin/config/environment.js
+++ b/ui/admin/config/environment.js
@@ -80,6 +80,10 @@ module.exports = function (environment) {
       'media-src': ["'self'"],
       'manifest-src': ["'self'"],
     },
+
+    'ember-cli-mirage': {
+      directory: '../../addons/api/mirage'
+    }
   };
 
   // Unsafe policy is necessary in development and test environments, but should