New top story on Hacker News: Ask HN: What are the not-so obvious things to consider while API integration?

Ask HN: What are the not-so obvious things to consider while API integration?
3 by path89 | 2 comments on Hacker News.
We are in the process of selecting an external vendor to integrate with. So, right now we are reading documentations of potential vendors and in the process of doing a doing a feasibility study. Assuming all vendors provide similar capabilities in terms of costs, features, support, API response times, load testing results and the like what are some pratical things to consider before moving forward ahead with one?