Sent provides a unified API that enables brands to send messages across multiple channels, including SMS, WhatsApp, and iMessage, while optimizing delivery based on real-time channel performance and user engagement data. This technology reduces messaging costs by 80-90% and simplifies integration for developers, allowing them to focus on product development rather than managing multiple messaging services.
Funding
Funding not disclosed






+3Founders
Product
Problem
Businesses face complexity and high costs when managing communications across multiple messaging channels like SMS, WhatsApp, and iMessage due to disparate APIs and channel-specific requirements. This complexity distracts from core product development and increases operational overhead.
Solution
Sent provides a unified API that simplifies sending messages across various channels, including SMS, WhatsApp, iMessage, Viber and RCS. The platform optimizes message delivery based on real-time channel performance and user engagement data, reducing messaging costs. Sent's API abstracts channel-specific implementations, allowing developers to use a single message format with optional channel-specific parameters. It also offers automatic conversion between rich message formats and fallback handling for capability-limited channels.
Target Audience
Sent targets businesses and developers who need to send messages to customers across multiple channels, particularly those looking to reduce costs and simplify integration.
Features
- Channel-agnostic RESTful API endpoints for SMS, WhatsApp, iMessage, Viber and RCS
- ML-powered delivery time optimization and channel selection
- Automatic message schema transformation between MMS, RCS Business Messaging, WhatsApp Templates, and SMS
- Configurable channel-specific fallback rules and cascading delivery logic
- Real-time metrics on channel performance, routing decisions, and delivery states
- Unified phone number provisioning and management across channels
- Visual template editor for designing and testing rich message templates
- Sandbox environment for testing message delivery across channels
- Modular webhooks for real-time notifications of message events