diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..9969be56
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x9102357674825ed224734387fbefbf41c16fe5d9764c2f7f3e897ad3325d3990"
+  }
+}