diff --git a/.cortex/catalog/cortex.yaml b/.cortex/catalog/cortex.yaml
new file mode 100644
index 00000000..1de78e69
--- /dev/null
+++ b/.cortex/catalog/cortex.yaml
@@ -0,0 +1,18 @@
+openapi: 3.0.1
+info:
+  title: Xero-Ruby SDK
+  description: "[Product] The xero-ruby SDK makes it easy for developers to access\
+    \ Xero's APIs in their Ruby code, and build robust applications and software\
+    \ using small business & general ledger accounting data."
+  x-cortex-tag: aHTk9LmvGNJbexVGtaWt6g
+  x-cortex-type: domain
+  x-cortex-slack:
+    channels:
+    - name: help-xero-openapi-github
+  x-cortex-groups:
+  - domain-type:product
+  - phase:sustained-release
+  x-cortex-oncall:
+    pagerduty:
+      id: null
+      type: SERVICE
\ No newline at end of file