diff --git a/api/application-service/application_service.yaml b/api/application-service/application_service.yaml
index 485c32df..c39ce198 100644
--- a/api/application-service/application_service.yaml
+++ b/api/application-service/application_service.yaml
@@ -101,6 +101,7 @@ paths:
         aliases inside the application service's ``aliases`` namespace. The
         homeserver will send this request when it receives a request to join a
         room alias within the application service's namespace.
+      operationId: queryRoomByAlias
       parameters:
         - in: path
           name: roomAlias
@@ -159,6 +160,7 @@ paths:
         inside the application service's ``users`` namespace. The homeserver will
         send this request when it receives an event for an unknown user ID in
         the application service's namespace.
+      operationId: queryUserById
       parameters:
         - in: path
           name: userId
diff --git a/api/identity/lookup.yaml b/api/identity/lookup.yaml
index ebd306cb..bfd2153e 100644
--- a/api/identity/lookup.yaml
+++ b/api/identity/lookup.yaml
@@ -90,6 +90,7 @@ paths:
     post:
       summary: Lookup Matrix user IDs for a list of 3pids.
       description: Lookup Matrix user IDs for a list of 3pids.
+      operationId: lookupUsers
       parameters:
         - in: body
           name: body