HubSpot Leads API

HubSpot provides Internet marketing software that helps businesses get found online, generate more inbound leads and convert a higher percentage of those leads into paying customers. HubSpot's software platform includes tools that allow professional marketers and small business owners to manage search engine optimization, blogging and social media, as well as landing pages, email marketing, lead intelligence and marketing analytics. The HubSpot Leads API provides access to your lead information. It is a REST-style API which you can use to add leads to the system, update lead information (e.g. adding a form submission), query and search leads, and export information about your leads. The API is currently in Beta.