diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..cf93e0d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x696c9b46af5eeaa2fcfa86f23da23ed1ce7938df67d90d422e6ba7ee2604b512"
+  }
+}