diff --git a/.cortex/catelog/cortex.yaml b/.cortex/catelog/cortex.yaml
new file mode 100644
index 000000000..fbcf27e34
--- /dev/null
+++ b/.cortex/catelog/cortex.yaml
@@ -0,0 +1,21 @@
+openapi: 3.0.1
+info:
+  title: Xero-OpenAPI
+  description: "[Product] An OpenAPI (Swagger) specification for the Xero API with\
+    \ OAuth 2.0 security schema."
+  x-cortex-tag: xv95yce9FxfyArQM7Q3grV
+  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
+  x-cortex-owners:
+  - type: EMAIL
+    email: null
+    inheritance: APPEND
\ No newline at end of file