diff --git a/funding.json b/funding.json
new file mode 100644
index 000000000..c47fccfee
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x7262ed9c020b3b41ac7ba405aab4ff37575f8b6f975ebed2e65554a08419f8f4"
+  }
+}