Index: TECH/Http/Message.cls.xml
===================================================================
diff -u -r3563 -r3704
--- TECH/Http/Message.cls.xml	(.../Message.cls.xml)	(revision 3563)
+++ TECH/Http/Message.cls.xml	(.../Message.cls.xml)	(revision 3704)
@@ -25,6 +25,10 @@
 <Type>%String</Type>
 </Property>
 
+<Property name="XApiKey">
+<Type>%String</Type>
+</Property>
+
 <Property name="ContextEncoding">
 <Type>%String</Type>
 </Property>
Index: TECH/Http/impl/Poster.cls.xml
===================================================================
diff -u -r3563 -r3704
--- TECH/Http/impl/Poster.cls.xml	(.../Poster.cls.xml)	(revision 3563)
+++ TECH/Http/impl/Poster.cls.xml	(.../Poster.cls.xml)	(revision 3704)
@@ -28,6 +28,11 @@
 	 	Set ..HttpRequest = ##class(%Net.HttpRequest).%New()
 	 	Set ..HttpRequest.Server = Message.Server
 	 	Set ..HttpRequest.ContentType = Message.ContentType
+	 	
+	 	If ($$$HasLength(Message.XApiKey)) {
+	 		Do ..HttpRequest.SetHeader("x-api-key",Message.XApiKey)
+	 	}
+	 	
 	 	Set ..HttpRequest.ContentEncoding = Message.ContextEncoding
 	 	If ($$$HasLength(Message.Port)) {
 		 	Set ..HttpRequest.Port = Message.Port