diff --git a/ch07/02_dataset-utilities/config.json b/ch07/02_dataset-utilities/config.json
new file mode 100644
index 0000000..3f41b84
--- /dev/null
+++ b/ch07/02_dataset-utilities/config.json
@@ -0,0 +1,3 @@
+{
+    "OPENAI_API_KEY": "sk-..."
+}
\ No newline at end of file
diff --git a/ch07/03_model-evaluation/config.json b/ch07/03_model-evaluation/config.json
new file mode 100644
index 0000000..3f41b84
--- /dev/null
+++ b/ch07/03_model-evaluation/config.json
@@ -0,0 +1,3 @@
+{
+    "OPENAI_API_KEY": "sk-..."
+}
\ No newline at end of file