diff --git a/src/main/java/org/gcube/gcat/rest/BaseREST.java b/src/main/java/org/gcube/gcat/rest/BaseREST.java
index ade959b..8313878 100644
--- a/src/main/java/org/gcube/gcat/rest/BaseREST.java
+++ b/src/main/java/org/gcube/gcat/rest/BaseREST.java
@@ -1,17 +1,23 @@
 package org.gcube.gcat.rest;
 
 import javax.ws.rs.core.Context;
-import javax.ws.rs.core.UriInfo;
 import javax.ws.rs.core.Response.ResponseBuilder;
+import javax.ws.rs.core.UriInfo;
 
 import org.gcube.common.authorization.library.provider.CalledMethodProvider;
 import org.gcube.gcat.api.GCatConstants;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.webcohesion.enunciate.metadata.rs.RequestHeader;
+import com.webcohesion.enunciate.metadata.rs.RequestHeaders;
+
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
+@RequestHeaders ({
+	  @RequestHeader( name = "Authorization", description = "Bearer token, see https://dev.d4science.org/how-to-access-resources"),
+})
 public class BaseREST {
 	
 	private final Logger logger = LoggerFactory.getLogger(this.getClass());