Ask HN: is it safe to recommend SaaS/API startups to clients?

I'm just wondering how those of you that build applications for clients view recommending startup companies to those clients. I really like a lot of the startup SaaS companies that I see on HN. There is one in particular with a great API that I am considering recommending for integration into a project for a client. However, I have noticed that there is often a strong emphasis among startups to try and get bought out as quickly as possible, and sometimes these buyouts include shutting down the original service or greatly changing its terms or pricing. This would have serious negative consequences for my clients if their sites were heavily integrated with these services. Someone would be on the hook for redoing the work and migrating their data, whether it is my client or me, the situation would be difficult. What is the best way of dealing with this situation? Is recommending a small startup with a great service safe? I've considered asking the founders directly if they're in it for the long-term or are just looking for a quick buy-out, but if I were a founder looking for a quick buck I'm not sure how honestly I'd answer that question.