Bank SWIFT Autocomplete Integration

I’ve built a Next.js site that already captures user payment data, and now I need the SWIFT / BIC portion of the form to feel as slick as the rest of the experience. Specifically, the field that asks for a bank’s SWIFT code should suggest matching codes the moment a visitor begins typing—exactly the way city or country pickers work on travel sites.

The work is entirely on a web form that lives inside a Next.js page, running on a standard Node.js back-end. I’m open to whichever lightweight client-side approach you prefer—whether that’s a vanilla JavaScript solution, a tiny React widget, or a call to a server route that returns matches as JSON—as long as it does not bloat bundle size or slow Time-to-First-Byte.

What matters most is accuracy and speed. You can use a public SWIFT directory if the license permits, convert an existing CSV into a quick-look data structure, or even pull the data from an API you recommend, as long as everything remains GDPR-compliant.

Deliverables
• A working autocomplete component wired into my current SWIFT input field
• The underlying data source or API integration script
• Clear setup notes so I can reproduce the install on staging and production

I’ll provide a Git branch with the current form and staging URL once we agree to start.