If your API documentation is perfectly fine (ha-ha) in a API Blueprint or Swagger format then Dredd could be helpful for you. This tool for checking API responses could not only check response code, but also check JSON fields types to match the API. And of cource you can integrate Dredd with your favourite CI tool.

And if documentation exists only in your head then it could be a good reason to start formalize it. BTW if you prefer SaaS then there is Runscope for that and it costs $79 per month.

I think that good to have both of this tools — API on your production server could be different from documentation not only because of bad code review, but also because of consistency problem like if you deleted the user from DB and didn't delete his comments due to some error.

#saas #testing #api