diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000000..bcf7fc2783d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x966804cb492e1a4bde5d781a676a44a23d69aa5dd2562fa7a4f95bb606021c8b"
+  }
+}