diff --git a/packages/react-native/src/private/fusebox/FuseboxSessionObserver.js b/packages/react-native/src/private/fusebox/FuseboxSessionObserver.js
new file mode 100644
index 00000000000..498901a8221
--- /dev/null
+++ b/packages/react-native/src/private/fusebox/FuseboxSessionObserver.js
@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ * @oncall react_native
+ */
+
+class FuseboxSessionObserver {
+  #hasNativeSupport: boolean;
+
+  constructor() {
+    this.#hasNativeSupport = global.hasOwnProperty(
+      '__DEBUGGER_SESSION_OBSERVER__',
+    );
+  }
+
+  hasActiveSession(): boolean {
+    if (!this.#hasNativeSupport) {
+      return false;
+    }
+
+    return global.__DEBUGGER_SESSION_OBSERVER__.hasActiveSession;
+  }
+
+  subscribe(callback: (status: boolean) => void): () => void {
+    if (!this.#hasNativeSupport) {
+      return () => {};
+    }
+
+    global.__DEBUGGER_SESSION_OBSERVER__.subscribers.add(callback);
+    return () => {
+      global.__DEBUGGER_SESSION_OBSERVER__.subscribers.delete(callback);
+    };
+  }
+}
+
+const observerInstance: FuseboxSessionObserver = new FuseboxSessionObserver();
+export default observerInstance;