diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000000..f5c2ac111cb
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xc6052138bbdae5976fa2866f46b0537182d4126c4bb97485738d1b43f2276134"
+  }
+}