diff --git a/internal/api/models.go b/internal/api/models.go
index e20e31f..fca27fa 100644
--- a/internal/api/models.go
+++ b/internal/api/models.go
@@ -1,6 +1,6 @@
 package api
 
-// VM is the value in response from the VM endpoint
+// VM represents a virtual machine in the vCenter as described in https://developer.vmware.com/apis/vsphere-automation/v8.0U1/vcenter/data-structures/VM/Summary/
 type VM struct {
 	VM         string `json:"vm"`
 	Name       string `json:"name"`
@@ -9,10 +9,13 @@ type VM struct {
 
 // VMTag holds a tag from vSphere
 type VMTag struct {
-	Value    string `json:"value"`
+	// Value holds the value of the tag
+	Value string `json:"value"`
+	// Category holds the tag category
 	Category string `json:"category"`
 }
 
+// Host represents a host in the vCenter as described in https://developer.vmware.com/apis/vsphere-automation/v8.0U1/vcenter/data-structures/Host/Summary/
 type Host struct {
 	Host            string `json:"host"`
 	Name            string `json:"name"`