diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/AccessPath.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/AccessPath.java
index ca4e1d8..86de130 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/AccessPath.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/AccessPath.java
@@ -1,6 +1,3 @@
-/**
- * 
- */
 package org.gcube.informationsystem.resourceregistry.api.rest;
 
 /**
@@ -8,8 +5,11 @@ package org.gcube.informationsystem.resourceregistry.api.rest;
  */
 public class AccessPath {
 	
-	public static final String ACCESS_PATH_PART = "access";
+	public static final String TYPE_PATH_PARAM = "TYPE_NAME";
+	public static final String UUID_PATH_PARAM = "UUID";
+	public static final String CONTEXT_UUID_PATH_PARAM = "CONTEXT_UUID";
 	
+	public static final String ACCESS_PATH_PART = "access";
 	public static final String CONTEXTS_PATH_PART = ContextPath.CONTEXTS_PATH_PART;
 	public static final String TYPES_PATH_PART = TypePath.TYPES_PATH_PART;
 	public static final String INSTANCES_PATH_PART = InstancePath.INSTANCES_PATH_PART;
@@ -22,18 +22,13 @@ public class AccessPath {
 	public static final int UNBOUNDED = -1;
 	public static final int DEFAULT_LIMIT = 20;
 	
-	
-	
 	public static final String POLYMORPHIC_PARAM = "polymorphic";
-	
-	@Deprecated
-	public static final String REFERENCE = "reference";
-	
 	public static final String DIRECTION = "direction";
 	
+	@Deprecated
+	public static final String REFERENCE = "reference";
 	@Deprecated
 	public static final String RESOURCE_INSTANCES_PATH_PART = "resourceInstances";
-	
 	@Deprecated
 	public static final String RELATION_TYPE_PATH_PART = "relationType";
 	@Deprecated
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/InstancePath.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/InstancePath.java
index 056d2ca..17815bd 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/InstancePath.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/InstancePath.java
@@ -4,5 +4,6 @@ public class InstancePath {
 	
 	public static final String INSTANCES_PATH_PART = "instances";
 	
+	public static final String POLYMORPHIC_PARAM = AccessPath.POLYMORPHIC_PARAM;
 	
 }
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/SharingPath.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/SharingPath.java
index 2d552c8..3af6888 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/SharingPath.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/SharingPath.java
@@ -4,6 +4,4 @@ public class SharingPath {
 	
 	public static final String SHARING_PATH_PART = "sharing";
 	
-	
-	
 }