diff --git a/QuantumNexusProtocol/src/interoperability/legacy_system_adapter.py b/QuantumNexusProtocol/src/interoperability/legacy_system_adapter.py
new file mode 100644
index 000000000..2e7054f6d
--- /dev/null
+++ b/QuantumNexusProtocol/src/interoperability/legacy_system_adapter.py
@@ -0,0 +1,21 @@
+import requests
+
+class LegacySystemAdapter:
+    def __init__(self, legacy_api_url):
+        self.legacy_api_url = legacy_api_url
+
+    def fetch_data(self, endpoint):
+        response = requests.get(f"{self.legacy_api_url}/{endpoint}")
+        return response.json()
+
+    def send_data(self, endpoint, data):
+        response = requests.post(f"{self.legacy_api_url}/{endpoint}", json=data)
+        return response.status_code, response.json()
+
+# Example usage
+if __name__ == "__main__":
+    adapter = LegacySystemAdapter('https://legacy-system-url/api')
+    data = adapter.fetch_data('data-endpoint')
+    print(f"Fetched Data: {data}")
+    status, response = adapter.send_data('data-endpoint', {'key': 'value'})
+    print(f"Response Status: {status}, Response: {response}")