diff --git a/src/main/java/stirling/software/SPDF/config/interfaces/SessionsInterface.java b/src/main/java/stirling/software/SPDF/config/interfaces/SessionsInterface.java
new file mode 100644
index 000000000..e368046ba
--- /dev/null
+++ b/src/main/java/stirling/software/SPDF/config/interfaces/SessionsInterface.java
@@ -0,0 +1,20 @@
+package stirling.software.SPDF.config.interfaces;
+
+import java.util.Collection;
+
+import stirling.software.SPDF.config.anonymus.session.AnonymusSessionInfo;
+
+public interface SessionsInterface {
+
+    default boolean isSessionValid(String sessionId) {
+        return false;
+    }
+
+    boolean isOldestNonExpiredSession(String sessionId);
+
+    void updateSessionLastRequest(String sessionId);
+
+    Collection<AnonymusSessionInfo> getAllSessions();
+
+    Collection<AnonymusSessionInfo> getAllNonExpiredSessions();
+}