Sent is a unified messaging infrastructure platform designed to replace fragmented provider integrations with a single, high-performance API. By abstracting the complexity of managing multiple channels and carriers, Sent allows developers to communicate with customers across SMS, WhatsApp, and RCS through one cohesive interface. The platform handles the technical nuances of each channel, including content transformation, compliance requirements, and carrier-specific logic, effectively functioning as a comprehensive messaging backend rather than just a simple message delivery service.

Functionality centers on intelligent routing and automated message delivery. When an application sends a message via Sent, the platform automatically determines the best available channel based on real-time availability, cost efficiency, and recipient preferences. It handles the full lifecycle of a message, from queuing and validation to delivery confirmation and automatic fallback mechanisms if a primary channel fails. This approach significantly reduces the operational overhead of managing separate provider APIs and regulatory constraints like 10DLC registration, template management, and opt-out compliance.

Some of the key features are:

• Unified API: Send SMS, WhatsApp, and RCS messages using one integration.
• Smart Routing: Automatically selects the most cost-effective and reliable channel for each recipient.
• Automated Fallbacks: Seamlessly transitions delivery to alternative channels when a primary attempt fails.
• Compliance Automation: Built-in support for 10DLC, GDPR, and WhatsApp template approval processes.
• Content Transformation: Automatically adapts message content to fit the formatting requirements of different messaging channels.
• Developer-Friendly SDKs: Official support for TypeScript, Python, Go, Java, C#, PHP, and Ruby.
• Message Lifecycle Tracking: Real-time visibility into the status of every message sent.
• Compliance & Security: SOC 2 Type II certified with automatic regulatory compliance for global reach.

Operationally, Sent functions as an abstraction layer between the developer's application and the global telecommunications infrastructure. Users define delivery profiles (contacts) that store channel preferences, which the system then utilizes to optimize delivery paths. When a message is triggered, the system performs a channel availability check, renders templates into channel-specific payloads, and routes the request through direct carrier interconnects or official channel APIs. The system also monitors for delivery success and autonomously executes failover logic if required, providing a consistent, low-latency experience for the end user.

Some common use cases include:

• Abandoned Cart Recovery: Triggering automated WhatsApp or SMS messages to customers who left items in their cart to recover lost revenue.
• Appointment Reminders: Sending automated, HIPAA-compliant scheduling updates across various channels to reduce patient no-shows.
• Fraud Notifications: Delivering instant security alerts to users using the fastest available channel, such as RCS or SMS, to minimize risk.
• Transactional Messaging: Automating order confirmations and shipping updates to provide real-time updates to customers throughout their purchasing journey.