APIHub has rebranded to Clearbit in an effort to adopt a simpler and less developer-centric name, addressing feedback that the previous name was difficult to pronounce for those unfamiliar with APIs and led to assumptions of competition with Mashape. The rebranding decision underscores the challenges of selecting a unique name amidst scarce domain availability and existing trademarks, emphasizing the importance of not being confined by a name but rather building a brand around it. Despite the name change, the company assures users that while new API endpoints have been introduced, the old domain will remain permanently functional.