plugmyagent

OneSignal

Marketing & SEO Free key (no card)

AuthenticationFree key (no card)
Rate limitFree plan: under 1,000 monthly active users for free mobile push and in-app messaging (new customers since Sept 2026); other channels have their own free limits.

Documentation: documentation.onesignal.com ยท Checked Sep 13, 2026

About

OneSignal is the standard free way to add push notifications (web and mobile), in-app messages, email, and SMS to an app or site. Its REST API sends targeted or broadcast messages, manages segments, and reports delivery. The free plan covers small audiences; note that since September 2026, new customers need under 1,000 monthly active users for free mobile push and in-app messaging.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: Free plan: under 1,000 monthly active users for free mobile push and in-app messaging (new customers since Sept 2026); other channels have their own free limits.

Verified: 2026-09-13

Best for: notifications marketing mobile engagement

Read the docs Back to catalog

Setup

  1. Create a free OneSignal account and add your app or site
  2. Install the SDK or web snippet and collect subscribers
  3. Create a REST API key in settings
  4. Send a test push to yourself
  5. Build segments and schedule campaigns
Sign up