diff --git a/pkg/models/registry.go b/pkg/models/registry.go
index 4fa4042..67927c6 100644
--- a/pkg/models/registry.go
+++ b/pkg/models/registry.go
@@ -16,7 +16,7 @@ var (
 // RegisterModel registers a model type with the registry
 // The model must be a struct or a pointer to a struct
 // e.g RegisterModel(&ModelPublicUser{},"public.user")
-func RegisterModel(model interface{}, name string) {
+func RegisterModel(model interface{}, name string) error {
 	modelRegistryMutex.Lock()
 	defer modelRegistryMutex.Unlock()
 
@@ -28,6 +28,7 @@ func RegisterModel(model interface{}, name string) {
 		name = modelType.Name()
 	}
 	modelRegistry[name] = model
+	return nil
 }
 
 // RegisterFunction register a function with the registry
diff --git a/pkg/resolvespec/utils.go b/pkg/resolvespec/utils.go
index 9d05680..b595e66 100644
--- a/pkg/resolvespec/utils.go
+++ b/pkg/resolvespec/utils.go
@@ -65,3 +65,14 @@ func (h *APIHandler) getModelForEntity(schema, name string) (interface{}, error)
 	}
 	return model, err
 }
+
+func (h *APIHandler) RegisterModel(schema, name string, model interface{}) error {
+	fullname := fmt.Sprintf("%s.%s", schema, name)
+	model, err := models.GetModelByName(fullname)
+	if model != nil && err != nil {
+		return fmt.Errorf("model %s already exists", fullname)
+	}
+	err = models.RegisterModel(model, fullname)
+
+	return err
+}