diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..4109ed9
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xeb3b33f6fac2c3a5da6a6c81cfafd2574da9a61b891ced67c513cf23a33bd06e"
+  }
+}