diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..bc597dca
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xf5af54fc0c301d0714cbbba7624a5f82960590b62196780e4aa841f1ce17214b"
+  }
+}