diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..90942328
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x850df51e29f2846a5f085d88e6b6fc13fad51ad7161f8a825ed09d470668161a"
+  }
+}