diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index c412176..93aeb33 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -27,6 +27,29 @@
             An XOS Service Controller.
         properties:
             xos_base_props
+            base_url:
+                type: string
+                required: false
+                description: Base url, to allow resources to use relative URLs
+
+    tosca.nodes.ServiceControllerResource:
+        derived_from: tosca.nodes.Root
+        description: >
+            An XOS Service Resource.
+        properties:
+            xos_base_props
+            kind:
+                type: string
+                required: false
+                description: models, admin, django_library, synchronizer, rest, tosca_custom_types, or tosca_resource
+            format:
+                type: string
+                required: false
+                description: python, manifest, or docker
+            url:
+                type: string
+                required: false
+                description: url of resource, may be relative to base_url or absolute
 
     tosca.nodes.Tenant:
         derived_from: tosca.nodes.Root
@@ -977,6 +1000,12 @@
     tosca.relationships.TagsObject:
         derived_from: tosca.relationships.Root
 
+    tosca.relationships.HasResource:
+        derived_from: tosca.relationships.Root
+
+    tosca.relationships.UsedByController:
+        derived_from: tosca.relationships.Root
+
     tosca.capabilities.xos.Service:
         derived_from: tosca.capabilities.Root
         description: An XOS Service
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index ba4c42b..9e2042b 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -105,6 +105,44 @@
                 type: string
                 required: false
                 descrption: Replaces/renames this object
+            base_url:
+                type: string
+                required: false
+                description: Base url, to allow resources to use relative URLs
+
+    tosca.nodes.ServiceControllerResource:
+        derived_from: tosca.nodes.Root
+        description: >
+            An XOS Service Resource.
+        properties:
+            no-delete:
+                type: boolean
+                default: false
+                description: Do not allow Tosca to delete this object
+            no-create:
+                type: boolean
+                default: false
+                description: Do not allow Tosca to create this object
+            no-update:
+                type: boolean
+                default: false
+                description: Do not allow Tosca to update this object
+            replaces:
+                type: string
+                required: false
+                descrption: Replaces/renames this object
+            kind:
+                type: string
+                required: false
+                description: models, admin, django_library, synchronizer, rest, tosca_custom_types, or tosca_resource
+            format:
+                type: string
+                required: false
+                description: python, manifest, or docker
+            url:
+                type: string
+                required: false
+                description: url of resource, may be relative to base_url or absolute
 
     tosca.nodes.Tenant:
         derived_from: tosca.nodes.Root
@@ -1741,6 +1779,12 @@
     tosca.relationships.TagsObject:
         derived_from: tosca.relationships.Root
 
+    tosca.relationships.HasResource:
+        derived_from: tosca.relationships.Root
+
+    tosca.relationships.UsedByController:
+        derived_from: tosca.relationships.Root
+
     tosca.capabilities.xos.Service:
         derived_from: tosca.capabilities.Root
         description: An XOS Service
diff --git a/xos/tosca/resources/servicecontrollerresource.py b/xos/tosca/resources/servicecontrollerresource.py
new file mode 100644
index 0000000..96ea83d
--- /dev/null
+++ b/xos/tosca/resources/servicecontrollerresource.py
@@ -0,0 +1,27 @@
+import os
+import pdb
+import sys
+import tempfile
+sys.path.append("/opt/tosca")
+from translator.toscalib.tosca_template import ToscaTemplate
+
+from core.models import ServiceControllerResource, ServiceController
+
+from xosresource import XOSResource
+
+class XOSServiceControllerResource(XOSResource):
+    provides = "tosca.nodes.ServiceControllerResource"
+    xos_model = ServiceControllerResource
+    copyin_props = ["kind", "format", "url"]
+
+    def get_xos_args(self, throw_exception=True):
+        args = super(XOSServiceControllerResource, self).get_xos_args()
+
+        controller_name = self.get_requirement("tosca.relationships.UsedByController", throw_exception=throw_exception)
+        if controller_name:
+            args["service_controller"] = self.get_xos_object(ServiceController, throw_exception=throw_exception, name=controller_name)
+
+        return args
+
+
+