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Siren is a communication infrastructure platform purpose-built for AI agents and automated systems. Instead of manually integrating multiple messaging providers, Siren acts as the communication rails—handling message delivery, routing, and orchestration across channels.

It empowers your AI agents to trigger, manage, and optimize real-time communication with users via SMS, Email, WhatsApp, Push, and In-App messages—all from a single, unified interface.

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Why Siren?

  • Built for AI-Driven Communication: Enable your agents to engage users contextually, using Siren’s APIs and SDKs to trigger messages, workflows, and campaigns with precision.
  • Unified Messaging Infrastructure: Skip the complexity of managing multiple vendor APIs. Siren abstracts channel-level logic and handles provider integration, retries, failovers, and status tracking.
  • Composability & Control: Design notification flows, manage preferences, and set delivery conditions—all through intuitive workflows that your AI agents can programmatically control.

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What You Can Do

  • Connect Once, Communicate Everywhere: Use one API to reach users over SMS, Email, WhatsApp, Push, and In-App.
  • Trigger Smart Workflows: Let your agents initiate messaging logic based on user actions, external events, or system states.
  • Manage Campaigns at Scale: Deploy personalized, multi-step messaging campaigns—automated and optimized for engagement.
  • Track & Iterate: Access real-time dashboards and logs to monitor delivery status, user interaction, and performance metrics.

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Use Cases

  • Agent-to-User Communication Equip AI agents with the ability to send real-time alerts, updates, or confirmations directly to users through the most effective channel.
  • Conversational Campaigns Automate messaging sequences driven by user behavior, campaign goals, or AI model outputs.
  • Operational Messaging Schedule and send notifications for reminders, verifications, and system events with full reliability.

Ready to build with Siren? 👉 Head over to the Quick Start Guide to set up your project and start sending your first notification.