Is there an API for developers who want to build on Snaptide?

No public API is documented on the site — Snaptide is used through its web application, and there's no developer portal or integration marketplace that I've seen. If you're a studio with automation needs, the honest options are the built-in features (folder uploads, bulk tools, notification systems) and submitting a Feature Request for anything genuinely missing. The team reads those — the WhatsApp notification system itself was shaped partly by photographer feedback, so feature requests aren't disappearing into a void.