description Twilio API Overview
Twilio is the dominant platform for programmatic communication. Its API allows developers to build entirely new communication channelssending SMS messages, making automated voice calls, integrating WhatsApp, and managing video conferencingall through code. Its sheer breadth of communication endpoints makes it indispensable for customer service automation and notification systems.
help Twilio API FAQ
What can developers build with the Twilio API?
Developers use Twilio for SMS, voice calls, WhatsApp messaging, verification codes, call routing, and contact-center workflows. Products like Twilio Programmable Messaging and Twilio Voice are the core building blocks.
How does Twilio send an SMS from code?
A server sends a request to Twilio's API with a recipient number, sender number, and message body. Twilio then handles carrier delivery and sends status callbacks through webhooks.
Is Twilio Verify different from sending my own OTP texts?
Yes. Twilio Verify is a managed verification product for one-time passcodes, while raw SMS gives you more control but also more responsibility for fraud controls and retry logic.
What are common Twilio alternatives?
Developers often compare Twilio with Vonage, MessageBird, Sinch, Plivo, and Telnyx. The right choice depends on country coverage, pricing, deliverability, and whether you need SMS, voice, WhatsApp, or all three.
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