diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..55bc19f9
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x2b6c413a5b076f917ada28ac44b0995daee75f06678705d1eb75ff5da38bdd3b"
+  }
+}