Transmit.dev

A unified communications API that lets developers send email, SMS, voice, and chat through a single interface, solving the problem of managing multiple vendors. It targets developers and engineering teams at startups and mid-market companies who need to integrate messaging into their applications. The service is positioned as a drop-in replacement for existing providers, with credits that never expire and a pay-per-use model.

Key features

• Unified API for email, SMS, voice, chat
• Credits never expire
• Pay only for what you send
• Real-time tracking and analytics
• Automatic retries and intelligent routing
• Drop-in compatible with existing providers
• Migration support included
• Direct access to founding team
• Founding member pricing locked in
• Multi-region routing for global scale
• Idempotent by default with deduplication
• Real-time webhooks with guaranteed delivery
• Complete audit logs with request tracing