Sent Unified Messaging API
One API for SMS, WhatsApp, iMessage & RCS with intelligent routing
Sent Unified Messaging API Overview
Sent's Unified Messaging API revolutionizes business communication by providing a single integration point for multiple messaging channels including SMS, WhatsApp, iMessage, and RCS. This next-generation A2P messaging solution empowers businesses to reach customers on their preferred platforms while significantly reducing infrastructure complexity. The API features intelligent routing that automatically selects the optimal delivery channel, rich media support across platforms, and real-time delivery tracking. Designed for modern businesses, Sent helps reduce messaging costs by 80-90% while maintaining global reach. The platform is ideal for developers and enterprises looking to streamline their customer communication stack without sacrificing functionality or compliance.
Sent Unified Messaging API Screenshot
Sent Unified Messaging API Official screenshot of the tool interface
Sent Unified Messaging API Core Features
Channel-Agnostic API
Sent provides unified RESTful endpoints that abstract away channel-specific implementations. Developers can use a single message format with optional channel-specific parameters when needed. The API supports bulk operations with automatic rate limiting to prevent service disruptions.
Intelligent Delivery Optimization
Our ML-powered system optimizes both delivery timing and channel selection. The platform automatically adjusts sending patterns based on historical delivery success rates and user engagement data, maximizing message open rates while minimizing costs.
Automatic Message Transformation
Sent automatically converts between rich message formats (MMS, RCS Business Messaging, WhatsApp Templates) with sophisticated fallback handling for capability-limited channels like SMS. This ensures your messages look great regardless of the recipient's device or preferred platform.
Channel Availability Detection
Determine which messaging channels your customers use instantly with just their phone number - no client-side data required. This powerful feature enables smarter routing decisions and helps maximize engagement rates.
Comprehensive Delivery Analytics
Gain real-time visibility into channel performance, routing decisions, and delivery states. Track costs per channel, message transformation success rates, and channel availability patterns through our detailed analytics dashboard.
White Route Compliance
Sent integrates exclusively with official channels (10DLC-registered SMS, WhatsApp Cloud API, Google RBM) and provides automated compliance monitoring with reporting for all messaging routes, ensuring your communications meet all regulatory requirements.
Unified Number Management
Manage phone numbers across all channels from a single interface. Use the same number for SMS, WhatsApp Business, and RCS with automated verification and compliance checks that simplify your setup process.
Sent Unified Messaging API Use Cases
E-commerce Order Notifications
Online retailers use Sent to deliver order confirmations, shipping updates, and delivery notifications across multiple channels. The intelligent routing ensures messages reach customers on their preferred platform (SMS for basic updates, WhatsApp for richer interactions with tracking links), improving customer satisfaction while reducing support inquiries.
Financial Services Alerts
Banks and fintech companies leverage Sent's compliance features to securely deliver transaction alerts, fraud warnings, and 2FA codes. The platform's automatic fallback to SMS when RCS or WhatsApp aren't available ensures critical financial communications always reach customers.
Healthcare Appointment Reminders
Medical providers utilize Sent to reduce no-show rates with personalized appointment reminders. The system's delivery optimization helps messages arrive at the most effective times, while rich media support enables inclusion of maps and preparation instructions when appropriate.
How to Use Sent Unified Messaging API
Sign up for a Sent account and obtain your API credentials. New users receive $25 in credits and a complimentary phone number to begin testing immediately.
Integrate Sent's API into your application using one of our SDKs (available in 5+ languages) or directly through RESTful endpoints. The straightforward documentation makes integration possible in minutes.
Configure your messaging preferences, including default channels, fallback options, and compliance settings. The platform's intuitive interface guides you through setup without requiring deep technical knowledge.
Send your first message through the API. The system will automatically handle channel selection, message transformation, and delivery optimization based on your recipient's profile and preferences.
Monitor message delivery and performance through the real-time dashboard. Access detailed analytics, adjust your sending strategies, and scale your communications as needed.