diff --git a/config/dev.yml b/config/dev.yml
--- a/config/dev.yml
+++ b/config/dev.yml
@@ -7,3 +7,5 @@
   url: http://moma.internal.softwareheritage.org:5010
 
 debug: yes
+
+introspection: yes
diff --git a/config/staging.yml b/config/staging.yml
--- a/config/staging.yml
+++ b/config/staging.yml
@@ -7,3 +7,5 @@
   url: http://webapp.internal.staging.swh.network:5010
 
 debug: no
+
+introspection: yes
diff --git a/swh/graphql/server.py b/swh/graphql/server.py
--- a/swh/graphql/server.py
+++ b/swh/graphql/server.py
@@ -77,7 +77,12 @@
         graphql_cfg = load_and_check_config(config_path)
 
     application = CORSMiddleware(
-        GraphQL(schema, debug=graphql_cfg["debug"], error_formatter=format_error),
+        GraphQL(
+            schema,
+            debug=graphql_cfg["debug"],
+            error_formatter=format_error,
+            introspection=graphql_cfg["introspection"],
+        ),
         # FIXME, restrict origins after deploying the JS client
         allow_origins=["*"],
         allow_methods=("GET", "POST", "OPTIONS"),
diff --git a/swh/graphql/tests/unit/test_server.py b/swh/graphql/tests/unit/test_server.py
--- a/swh/graphql/tests/unit/test_server.py
+++ b/swh/graphql/tests/unit/test_server.py
@@ -55,7 +55,11 @@
 
 
 def test_make_app_from_configfile_with_config(mocker):
-    server.graphql_cfg = {"storage": {"test": "test"}, "debug": True}
+    server.graphql_cfg = {
+        "storage": {"test": "test"},
+        "debug": True,
+        "introspection": True,
+    }
     mocker.patch("starlette.middleware.cors.CORSMiddleware", return_value="dummy-app")
     assert server.make_app_from_configfile() == "dummy-app"