Are there APIs for job searching?

As we all know, job searching sucks. All of the search sites I've tried (LinkedIn, Indeed, etc.) are mediocre at best, with what seem like obvious features missing entirely or really clunky (whether you have security clearance, blacklist locations or companies, hide senior or intern roles, etc.). Are there any APIs available so that I can homebrew a filtering application? It looks like Indeed used to have one, but it's since been deprecated and only the employer API is still in service.