The most useful websites rarely operate alone. They exchange data with CRMs, product systems, sports platforms, email tools, learning systems and internal workflows.
The website becomes an interface
Once data comes from somewhere else, the job changes. Error handling, authentication, caching, data shape and ownership matter just as much as the component that displays the information.
APIs are not the whole integration
A reliable integration also needs a plan for what happens when data is missing, slow or changed upstream. Good integration work makes those edge cases boring for the person using the site.
That is why APIs and integrations sit inside the core Juicy development offer rather than being treated as an optional technical extra.