diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..d13667d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x8967594d2978692a35fea137ba640bb42f11cad907ca6b0bd01f3718fc4c7f5b"
+  }
+}