diff --git a/core/api/src/main/java/org/onlab/onos/ApplicationId.java b/core/api/src/main/java/org/onlab/onos/ApplicationId.java
new file mode 100644
index 0000000..f345607
--- /dev/null
+++ b/core/api/src/main/java/org/onlab/onos/ApplicationId.java
@@ -0,0 +1,59 @@
+package org.onlab.onos;
+
+import java.util.Objects;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Application id generator class.
+ */
+public final class ApplicationId {
+
+    private static AtomicInteger idDispenser;
+    private final Integer id;
+
+    // Ban public construction
+    private ApplicationId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer id() {
+        return id;
+    }
+
+    public static ApplicationId valueOf(Integer id) {
+        return new ApplicationId(id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof ApplicationId)) {
+            return false;
+        }
+        ApplicationId other = (ApplicationId) obj;
+        return Objects.equals(this.id, other.id);
+    }
+
+    /**
+     * Returns a new application id.
+     *
+     * @return app id
+     */
+    public static ApplicationId getAppId() {
+        if (ApplicationId.idDispenser == null) {
+            ApplicationId.idDispenser = new AtomicInteger(1);
+        }
+        return new ApplicationId(ApplicationId.idDispenser.getAndIncrement());
+    }
+
+}