Use TextMagic SMS to build your messaging app. The API uses HTTP GET methods with returns in JSON. An API Key is required for authentication. Use TextMagic SMS to send and receive text messages, analyze inbound and outbound messages, schedule recurring messages, and process bulk text messages. The API also offers methods for creating message templates, managing contacts and distribution lists, checking message statistics, and more. See the extensive API documentation to get started with the API and for information on obtaining an API Key.