The Wix Payments Curl Sample Code demonstrates how to access the REST API to access Wix user's site data including contacts and orders. etc.) The APIs use standard HTTPS terminology and OAuth authentication and return JSON-encoded responses.
Dynadot, an ICANN-accredited domain name registrar knows it's important for customers to find domain names that are right for them. That’s why they use Verisign’s NameStudio API, a domain name suggestion solution that returns relevant domain names in 13 languages and across a wide range of TLDs.
All Twitter APIs will soon use HTTP error code 400 for calls beyond your rate limit. One of Twitter's most popular services, the Search API, currently uses error code 503. You'll want to update any of your applications that use Twitter search so that they're looking for the right code.