diff --git a/FUNDING.json b/FUNDING.json
new file mode 100644
index 00000000..8916e82c
--- /dev/null
+++ b/FUNDING.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x5e6c436e48e56d6d9622ba5d0be0035c314e2b29d2afc8f5f1ee8ac75cd42532"
+  }
+}