diff --git a/funding.json b/funding.json
new file mode 100644
index 000000000..f32c67b07
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+    "opRetro": {
+      "projectId": "0xc71faa1bcb4ceb785816c3f22823377e9e5e7c48649badd9f0a0ce491f20d4b3"
+    }
+  }
\ No newline at end of file