One API.
Every notification channel.

PushCaster is a self-hosted notification orchestrator built on Novu. Route push, email, SMS, and WhatsApp from a single API — deployed on your own infrastructure, owned by you.

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Push (iOS / Android)Web Push (FCM/VAPID)Email via PostalSMS via Java ModemWhatsApp via Evolution

# Notification flow

Application Backend (AWS Lambda)
          ↓
  POST /v1/events/trigger
          ↓
 PushCaster / Novu (Contabo EU VPS)
 ↙       ↓        ↓        ↘
FCM/APNs  Postal  SMS API  Evolution API
 ↓         ↓       ↓          ↓
iOS/Android Email  SMS     WhatsApp

Why PushCaster?

Omni-channel delivery

Push, Email, SMS, and WhatsApp unified under one API call. One trigger reaches every channel.

Real-time orchestration

Novu-powered workflow engine handles routing, retries, and fallbacks automatically.

Self-hosted & private

Runs entirely on your own Contabo VPS. Full data ownership with zero per-subscriber pricing.

Platform agnostic

Works with Next.js, Capacitor, native iOS (Swift), and native Android (Kotlin) — same backend.

Migration path

Zero backend changes when moving from Capacitor to native Swift/Kotlin.

Novu API endpoint stays the same

Workflows and templates remain unchanged

Provider configurations untouched

Only 5–10 lines of token registration change on the client