Vocaroo is an online voice-recording web tool. Users can record messages through their computers onto an app on the Vocaroo homepage. Vocaroo will save the userâ€™s message for a limited time and provide a link where it can be played back. The site is still in beta. The API exposes Vocarooâ€™s uploading and link sharing functionality. It is a RESTful API that returns JSON formatted data.