A factor that comes to play when considering a rather technical field as developing the appointment scheduling API is the quality of experience that the concerned person would have in the field. In many ways the quality of work can differ with the use of different developers and it does pay to have someone well versed in the ways to bring out a notable work at best.
The factor of technical competence when it comes to the software and its allied fields, does play a strong role in the development activities of an API and its related workings. Usually it is seen that with the more competition of workers, they would not be exactly strong marketers of their very ability.
Asking around people who have had similar work done
Take the correct references could and should be the first step in any start to locating a proper developer. It does help in this area if the work in hand is similar to other applications already in use by someone or the other. This does provide a reference point to make comparisons which would not be the case if something is being attempted that is completely new.
The websites do count on most occasions
Practically all firms do use websites of some form or other to promote their activities. This is true of the individual programmers as well who would be using the websites to make a rather aggressive approach to getting good clients most of the time.
It is possible to locate the correct website most of the time and some sort of sample work or reference links can be found on the websites most of the time. So it is not exactly a cliché to ask people to have a look at the website.
Using industry directories to good effect
The modern day marketing practices do use industry based directories to good effect. It is to the benefit of those folks that aim at making a strong mark in the field to use directories to good effect. Increasingly, the common developer or programmer does use the directories in some innovative manners as has been seen of late. Here it is often the imagination that does put a hold as to how to create the best of effects.
Keeping an open mind does pay
Often people looking around for a developer for the app or API, would be totally caught unawares when someone comes out totally out of the blue to offer some of the best possible efforts possible. It is thus advisable to have an open mind that does not consider appearances and would be willing to try out something different.
There can rarely be beating the shock effect that a new comer can produce in a work and this can be had at a fraction of the cost that it would take a seasoned worker to do. It is more of the right approach with the correct set of people more than anything else.