diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..6c8f8da
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x447b6819a0fa334f2429f86c022cf75ef3cad7e6e96078cb361ab961514b5125"
+  }
+}