Platform Overview

Sent is an intelligent messaging platform that simplifies omnichannel communication through a unified API. By abstracting the complexity of multiple messaging channels, Sent enables developers to focus on building great user experiences while Sent handles delivery optimization, routing, and reliability.

How Sent Works

Sent acts as an intelligent middleware layer between your app and various messaging channel providers (SMS, WhatsApp, RCS, etc.). When you send a message through Sent's API, the platform automatically determines the optimal delivery path based on multiple factors including cost, speed, delivery success rates, and recipient preferences.

Core Architecture Components

Unified API Layer

Your single integration point for all messaging channels. Send messages across SMS, WhatsApp, RCS, and more through one consistent API interface. No need to manage multiple provider integrations or handle different authentication schemes.

Key Features:

• Single authentication mechanism across all channels
• Consistent request/response format
• Built-in rate limiting and retry logic

Message Delivery Intelligence

Sent's intelligent routing engine makes real-time decisions about how to deliver your messages. Each decision weighs:

• Cost Efficiency: Automatically selects the most cost-effective channel
• Success Rate: Uses historical data to predict and optimize delivery
• Geographic Optimization: Considers recipient location and local channel preferences

Smart Routing & Failover

When a message cannot be delivered through the primary channel, Sent automatically attempts delivery through fallback channels without any additional code on your end.

Routing Considerations:

• Recipient channel availability (WhatsApp installed, RCS-capable device/carrier, internet connected, etc.)
• Message content: text, media, or interactive components such as RCS suggestion chips and rich cards
• Regulatory compliance and regional restrictions

Real-Time Analytics & Webhooks

Track every message through its entire lifecycle with detailed analytics and real-time webhook notifications.

• Delivery confirmations
• Read receipts (WhatsApp and RCS; not available on SMS)
• Bounce and failure reasons
• Aggregate performance metrics

Sent for Developers

• Faster Time to Market: One integration instead of managing multiple provider SDKs
• Simplified Maintenance: No need to update code when switching or adding providers
• Better Error Handling: Unified error codes and automatic retry logic
• Sandbox Testing: A sandbox mode for every channel

Sent for Businesses

• Cost Optimization: Automatic routing to most cost-effective channels
• Higher Delivery Rates: Intelligent failover and channel selection
• Global Reach: Support for regional providers and compliance
• Scalability: Infrastructure that grows with your message volume

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