I'm building an interactive SMS app and looking for simple HTTP APIs to send messages to and receive messages from users. - Does twitter support such APIs to interact with twitter users (i didn't find any documentation on these)? - If not, where can i find free APIs that don't charge per message (the SMS aggregators/carriers charge a per-message fee, expensive for garage startups).
Typically, these APIs are offered on a shared short-code, and the mobile-originated messages would start with an app prefix (e.g. APP1) so the API platform would know which application to call. thanks Kiran
