You have a LinkedIn URL. You want the person's email. You search "linkedin email api" and find a maze of marketing pages and Stack Overflow threads from 2018 that all say roughly the same thing: there isn't one.
That's true. There is no first-party LinkedIn API that takes a profile URL and returns an email address. There never has been, and there isn't going to be. But there is a perfectly normal way to do this, and it's been quietly running under the hood of every CRM, sales tool, and recruiting platform for a decade. Here's what's actually going on.
What LinkedIn's APIs actually return
LinkedIn does have APIs. They are aggressively gated and aggressively scoped:
Marketing Developer Platform — ad campaign management, ad analytics, posting on behalf of pages. No contact data.
Talent Solutions API — for ATS integrations.…