M
API Matrix

Pusher Beams API

Development / API Key Intermediate HTTPS
Varies by plan (check documentation)
77 Score
Grade B
Visit Official Site Compare Alternatives

Overview

Pusher Beams is a managed push notification API that enables developers to send reliable push notifications to Android and iOS devices without managing their own FCM/APNs infrastructure. It handles device registration, token management, and delivery retries, exposing a simple REST API and client SDKs to publish notifications to individual devices or user segments. An API key and instance ID from the Pusher dashboard are required to authenticate requests.

💡

Beginner Tip

Create a free Pusher account and set up a Beams instance to obtain your instance ID and secret key. Install the platform-specific client SDK (Android, iOS, or Web) to register devices, then use the REST API or a server SDK to publish notifications. Start with a simple broadcast to all devices before implementing user-targeted or filtered notifications.

Available Data

Pusher Beams data via REST API
JSON-formatted response data
Requires API key authentication

Example Response

JSON Response 
{
  "status": "success",
  "data": {
    "result": "Data from Pusher Beams",
    "description": "Push notifications for Android & iOS",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

publishId Unique identifier for the publish request, used to track delivery status in logs

Implementation Example 

const url = "https://pusher.com/beams";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

401 Unauthorized Missing or incorrect Authorization header with the secret key
✓ Set the Authorization header to "Bearer YOUR_SECRET_KEY" — do not use the instance ID as the key
Device not receiving notifications The device token was registered with the wrong Beams instance ID or has not been registered yet
✓ Verify the client SDK is initialized with the correct instanceId and that the device registration call completed successfully before publishing
422 Unprocessable Entity Notification payload exceeds platform size limits or required fields are missing
✓ Keep notification title under 65 characters and body under 240 characters; ensure both title and body are present in the publish payload

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 10/20
🔒 Security 15/15
🛠 Developer XP 12/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS UNKNOWN
Category Development
Difficulty Intermediate
Verified: 2026-04-04

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