diff --git a/connection-coordinator/schemas/common.yaml b/connection-coordinator/schemas/common.yaml
index 3696190..4db20b2 100644
--- a/connection-coordinator/schemas/common.yaml
+++ b/connection-coordinator/schemas/common.yaml
@@ -37,4 +37,27 @@ Empty:
   description: |-
     A generic empty message that you can re-use to avoid defining duplicated
     empty messages in your APIs.
-  type: object
\ No newline at end of file
+  type: object
+
+ConnectionType:
+  description: |-
+    Enum that describes the type of a connection.
+    CONNECTION_TYPE_STANDARD - Standard connections are ordinary customer
+      connections.
+    CONNECTION_TYPE_TEST - Test connections are reserved for provider
+      development teams to support testing and canary workflows. Test
+      connections may be provisioned at bandwidths below the minimum supported
+      size (e.g. 50 Mbps). Bandwidth consumed by test connections must not
+      count against interconnect or environment capacity totals. Partners may
+      enforce a small quota on the number of active test connections.
+    CONNECTION_TYPE_MONITORING - Monitoring connections are reserved for
+      active monitoring sessions between providers. Monitoring connections may
+      be provisioned at a small bandwidth and must not tally against
+      interconnect or environment capacity totals. The quota is 1 per
+      interconnect (not per environment) to enable monitoring across all
+      underlying links.
+  enum:
+  - CONNECTION_TYPE_STANDARD
+  - CONNECTION_TYPE_TEST
+  - CONNECTION_TYPE_MONITORING
+  type: string
\ No newline at end of file
diff --git a/connection-coordinator/schemas/connection.yaml b/connection-coordinator/schemas/connection.yaml
index 4ee5d23..4ac5450 100644
--- a/connection-coordinator/schemas/connection.yaml
+++ b/connection-coordinator/schemas/connection.yaml
@@ -66,7 +66,13 @@ Connection:
       oneOf:
       - $ref: "#/EncodedKey"
       - $ref: "#/SourceConnectionName"
-        
+    connectionType:
+      allOf:
+      - $ref: "common.yaml#/ConnectionType"
+      description: |-
+        Optional. The type of connection being created. Defaults to
+        CONNECTION_TYPE_STANDARD if not specified.
+      default: CONNECTION_TYPE_STANDARD
 
   type: object