diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..4997edd
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,3 @@
+"opRetro": {
+  "projectId": "0x14c4932cb89f3c5ca4bb4b7e08f8ce1aa3be3ab6ff3983e13f305ebff55bd0a3"
+}