Today, we're happy to announce a new API that allows third-party developers to access the full Posterous technology stack.

The new API gives developers unprecedented access to methods and actions that were formerly available only to the core Posterous engineering team including the ability to create sites, add users for those sites and assigning  custom themes for each user.   Additionally, we've added API methods for retrieving and manipulating data around sites, users, posts, comments, and a number of other Posterous data types.

Aside from just adding new endpoints, we've also designed the API to be super easy to use. The new API is RESTful and presents a clean and concise set of URLs whose intent is easy to parse and understand. Moreover, we've designed the API site to be a powerful developer tool for working with the new API. Not only does this site document every single available method, it also allows developers to interface directly with the API from their browsers. Using this new tool, developers can experiment by dynamically changing the parameters and inspecting the response.

The use cases for the new API are impressive - whether you are empowering your users to be editors like Pulse did or distributing your content in real-time like Turner Broadcasting did for March Madness, our API can power it.  Another great example is Oxfam, who are using the Posteorus API to to drive awareness and participation in their recently announced campaign to grow a better future.   Anyone visiting the Oxfam grow site will soon be able to sign up and create a blog, hosted on the grow.gd domain (e.g. chris.grow.gd) with a custom theme developed by Obox.  All of the Grow blogs will contain an embedded grow widget to educate consumers on the growing food crisis and solicit their ideas for creating a different future.   And, of course, anyone signing up through Oxfam will have a full Posterous account and access to all our feature.

We can't wait to see what you do with it and welcome your feedback on how we can make it better. Start by checking out our new API site.