TaskRabbit is a task-completion service that allows users to outsource tasks to "runners" who are paid by the hour. The platform uses Twilio's SMS messaging service to connect runners with task requests, enabling same-day completion of tasks. TaskRabbit founders Leah and Kevin were inspired to create the service after realizing they needed help with a last-minute dog food run while getting ready for dinner. They leverage Twilio's API to send SMS notifications to available runners in their area, allowing them to quickly find help for various tasks. The use of Twilio simplifies the process, enabling TaskRabbit to provide an agile solution that can be easily implemented and tested.