What piece of (substantial) <i>text</i> is <i>replicated</i> when you implement someone else&#x27;s web API? If there isn&#x27;t one then there is nothing to copyright.<p>The question of how web services are defined is not material. The question is whether a &quot;API&quot; = &quot;fixed text&quot; or not. For library APIs, the answer is yes, for web APIs the answer is no.