As of 6/25/2008 it appears that this api is no longer available
In beta as of Jan 2006. From their site: To help launch our new Developer Program we will pay $500 for each of the first 20 applications (with source code) based on this API which are developed by you, and which we deem to be the most useful to the Textamerica Community as a whole. This is not a contest but merely our way of showing our appreciation for what you do.
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