diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000000..adadac5756
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xa0b16714baef75d97ec07fd48eaf42e79df92fe2a3c2d725d2388ede587ea54c"
+  }
+}