What is Tropo?

Tropo is cloud-based communications. Build applications for voice, SMS, and IM with one simple API. Host on our cloud using a variety of languages, or use our new Tropo Web API and build your app anywhere on the web with any programming language. You can create multi-party conferences, use speech recognition and text-to-speech, call using Skype or SIP and so much more - all powered by Voxeo - the largest and most reliable hosted communications platform in the world.

Tropo is currently in BETA and will always be absolutely free for development use. After the BETA, production use will start at $0.03 per minute. If you encounter any problems whatsoever during testing, please contact us via the help menu above. Thanks and happy Tropoing!

Sample Code

Here's a simple JavaScript example that shows you how to, well, you know.

answer();
say("Hello, world!");
hangup();

The following JavaScript example demonstrates how to ask a caller for input.

answer();

result = ask("For sales, just say sales. For support, say support.",
		{choices:"sales, support", repeat:3});

if (result.name == 'choice') {
	if (result.value == "sales")
		say("sales is not available right now.");
    
	if (result.value == "support")
		say("support is currently on the other line.");
}

hangup();

View our documentation for many more samples in each of the supported languages.