diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..743e507d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x27cbcfd7678c199355b12b66d6449531a4015998d1793640456392e8564af155"
+  }
+}