Could a warship deploy motor torpedo boats?

Did any warship deploy motor torpedo boats as its main purpose?

There were related concepts and ships carrying small craft, but not a broadly adopted vessel built solely for that motor-torpedo-boat role.

Warships, including battleships, were designed to carry small boats and torpedo craft in several ways. Those arrangements did not amount to a widely adopted ship whose sole purpose was deploying motor torpedo boats. Early landing-ship-dock ideas offer a loose conceptual parallel because they carried and launched smaller craft. The absence of a major operational type shows that carrying capability alone did not establish a durable fleet requirement.