diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000000..766f1bbf25
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+    "opRetro": {
+      "projectId": "0x1c33980ce1d1290b5300719114dbe2cade0b820cb2b45321b715fd53d7abc8d2"
+    }
+}