No idea what you're talking about. The OP's description continually refers to "API's". The apostrophe indicates singular possessive, but the OP intended it as a plural.
- This is one API.
- Those are several APIs.
- This API's REST architecture is easy to use.
- Those APIs' REST architectures are hard to use.
http://en.wikipedia.org/wiki/Application_programming_interfa...
When hiring devs, I definitely look for language skill and attention to detail in syntax. A buggy cover letter or resume suggests buggy code.