If you don't have your API ready or you can't be bothered to mock one up yourself, use Apiary. It's quick and painless. - @apiaryio
@apiaryio is awesome
Excellent API design solution and great support. @apiaryio
Love that I can make changes to my @apiaryio docs in a PR on Github and they're reflected on apiary when merged in. Awesome feature guys!
.@apiaryio has been awesome for a while, and remains so. You can write and hit an API endpoint stub in seconds, plus a lot more.