Yes, there is API support for vendor integration into the Marketplace. The Vendasta APIs are built for serving server-to-server interactions. Your web application retrieves an authorization token(referred to in this documentation as an OAuth Token or Bearer Token) on behalf of one of your marketplace applications, so user credentials from your end are not directly involved. This scenario is known as “two-legged OAuth”; user consent is not directly required by your application, but is implied by a user having your application added to their account. Interaction with Vendasta Accounts, Users, and the Marketplace API can only occur once the Vendasta User has added your application to their account.