What Twilio is Twilio is a service for sending and receiving text messages programmatically [^01a0f15b-0757-72c4-9201-53d55ca674c7@176]. In the captured material it serves as the SMS backbone of the app — the plumbing that lets an application text users automatically rather than through a phone by hand. How it appears here While building the reading companion Hermes in under an hour with Cursor and OpenAI's o1 models, the builder wired up webhook plumbing and connected services like Twilio so the finished app could send and receive messages on its own [^01a0f15b-0757-72c4-9201-53d55ca674c7@176]. It's one of the off-the-shelf pieces that makes a personal AI app like this doable even without real coding experience. - Twilio sends and receives text messages programmatically [^01a0f15b-0757-72c4-9201-53d55ca674c7@176].- It functions as the SMS backbone of the app built in the video.- It pairs with webhook plumbing during the build of Hermes.