diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..179af5f6
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x945e356d400d37b4cd548ca3b53d4ee41a075c8b4befd0b8589947b6d8721ad4"
+  }
+}