diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..b9f92583
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xa7d78d566bfa319479ec048c94c3d8c1f4d628a9344ba157fc4974dbf472dc3e"
+  }
+}