diff --git a/funding.json b/funding.json
new file mode 100644
index 000000000000..29f2e782aa3d
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x5759249c433d67eeb2ca1b6ff827feec164b60b92e849d6ce0db0974cedc4a89"
+  }
+}