diff --git a/tests/test_endpoints.py b/tests/test_endpoints.py
index f8596f9c9..cbb1eb08c 100644
--- a/tests/test_endpoints.py
+++ b/tests/test_endpoints.py
@@ -1,3 +1,4 @@
+import uuid
 from langflow.services.auth.utils import get_password_hash
 from langflow.services.database.models.api_key.api_key import ApiKey
 from langflow.services.utils import get_settings_manager
@@ -102,6 +103,59 @@ def created_api_key(session, active_user):
     return api_key
 
 
+def test_process_flow_invalid_api_key(client, flow, monkeypatch):
+    # Mock de process_graph_cached
+    def mock_process_graph_cached(*args, **kwargs):
+        return {}, "session_id_mock"
+
+    settings_manager = get_settings_manager()
+    settings_manager.auth_settings.AUTO_LOGIN = False
+    from langflow.api.v1 import endpoints
+
+    monkeypatch.setattr(endpoints, "process_graph_cached", mock_process_graph_cached)
+
+    headers = {"api-key": "invalid_api_key"}
+
+    post_data = {
+        "inputs": {"key": "value"},
+        "tweaks": None,
+        "clear_cache": False,
+        "session_id": None,
+    }
+
+    response = client.post(f"api/v1/process/{flow.id}", headers=headers, json=post_data)
+
+    assert response.status_code == 403
+    assert response.json() == {"detail": "Invalid or missing API key"}
+
+
+def test_process_flow_invalid_id(client, monkeypatch, created_api_key):
+    def mock_process_graph_cached(*args, **kwargs):
+        return {}, "session_id_mock"
+
+    from langflow.api.v1 import endpoints
+
+    monkeypatch.setattr(endpoints, "process_graph_cached", mock_process_graph_cached)
+
+    api_key = created_api_key.api_key
+    headers = {"api-key": api_key}
+
+    post_data = {
+        "inputs": {"key": "value"},
+        "tweaks": None,
+        "clear_cache": False,
+        "session_id": None,
+    }
+
+    invalid_id = uuid.uuid4()
+    response = client.post(
+        f"api/v1/process/{invalid_id}", headers=headers, json=post_data
+    )
+
+    assert response.status_code == 404
+    assert f"Flow {invalid_id} not found" in response.json()["detail"]
+
+
 def test_process_flow_without_autologin(client, flow, monkeypatch, created_api_key):
     # Mock de process_graph_cached
     from langflow.api.v1 import endpoints