diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000000..0effdef184
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+    "opRetro": {
+      "projectId": "0xdd81f0fbb21c949e5d67176b22a39cfdc7c774349214a450df78eb31174413db"
+    }
+}