diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..c163c5e3
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x0e7e24d54fdbcf5d6a27de0c27c6a480a7ca063b0a3927478ec9c50c22b1bbdd"
+  }
+}