diff --git a/funding.json b/funding.json
new file mode 100644
index 000000000..4fa094fcd
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xae07bfec2c3c90937679f8c8c5c32e80407c09903aa03d1b5e5a075e67592b86"
+  }
+}