diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..cc23a55d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x1ea2fc7183a8ad244a97ecc287ca922209274c11dd9e991a04315e8399e118fc"
+  }
+}