diff --git a/funding.json b/funding.json
new file mode 100644
index 00000000..e5135544
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xf24315614063278ba3543e1717791132a9afa79b0e65baa01a85bcccbdfa215f"
+  }
+}