Pusher

Pusher is a realtime communication platform owned by MessageBird/Bird. Its primary product Channels provides pub/sub messaging over WebSocket and HTTP; Beams provides device push notifications. Authentication uses an app key + secret per Pusher app. Channels and Beams are still actively sold; the older Chatkit product was sunset.

2 APIs 0 Features

RealtimeWebSocketsPub/SubPush NotificationsMessaging

APIs

Pusher Channels API

Pub/sub channels over WebSocket (client) and HTTP (server publish). Public, private, and presence channels supported. WebSocket endpoint at ws-{cluster}.pusher.com. Cluster host...

Pusher Beams API

Server API for sending iOS, Android, and Web push notifications via FCM, APNs, and Web Push.

Event Specifications

Pusher Channels WebSocket Protocol

AsyncAPI definition of the Pusher Channels public WebSocket wire protocol (protocol version 7). Pusher Channels is a pub/sub realtime messaging service. Clients connect over Web...

ASYNCAPI

Resources

Sources

aid: pusher
url: https://raw.githubusercontent.com/api-evangelist/pusher/refs/heads/main/apis.yml
name: Pusher
kind: company
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
  - Realtime
  - WebSockets
  - Pub/Sub
  - Push Notifications
  - Messaging
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.19'
description: >-
  Pusher is a realtime communication platform owned by MessageBird/Bird. Its primary product
  Channels provides pub/sub messaging over WebSocket and HTTP; Beams provides device push
  notifications. Authentication uses an app key + secret per Pusher app. Channels and Beams
  are still actively sold; the older Chatkit product was sunset.
apis:
  - aid: pusher:channels-api
    name: Pusher Channels API
    tags:
      - Pub/Sub
      - WebSockets
      - HTTP
      - Messaging
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    baseURL: https://api-{cluster}.pusher.com/apps/{app_id}
    humanURL: https://pusher.com/docs/channels
    description: >-
      Pub/sub channels over WebSocket (client) and HTTP (server publish). Public, private, and
      presence channels supported. WebSocket endpoint at ws-{cluster}.pusher.com. Cluster
      hostnames include eu, us2, us3, ap1, ap2, ap3, etc.
    properties:
      - type: Documentation
        url: https://pusher.com/docs/channels
      - type: Pricing
        url: https://pusher.com/channels/pricing
      - type: AsyncAPI
        url: asyncapi/pusher-asyncapi.yml
    x-features:
      - Public, private, presence channels
      - End-to-end encryption (E2E)
      - Webhooks for events
      - Multi-region clusters
    x-use-cases:
      - In-app chat
      - Live dashboards
      - Realtime collaboration
  - aid: pusher:beams-api
    name: Pusher Beams API
    tags:
      - Push Notifications
      - Mobile
      - Web Push
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    baseURL: https://{instance_id}.pushnotifications.pusher.com
    humanURL: https://pusher.com/docs/beams
    description: Server API for sending iOS, Android, and Web push notifications via FCM, APNs, and Web Push.
    properties:
      - type: Documentation
        url: https://pusher.com/docs/beams
      - type: Pricing
        url: https://pusher.com/beams/pricing
    x-features:
      - Multi-platform push (iOS, Android, Web)
      - Authenticated user-targeted publishes
      - Device interest subscriptions
    x-use-cases:
      - Push to mobile apps
      - Web push notifications
common:
  - type: LinkedIn
    url: https://www.linkedin.com/company/pusher-app
  - type: Portal
    url: https://pusher.com/
  - type: Documentation
    url: https://pusher.com/docs
  - type: Pricing
    url: https://pusher.com/channels/pricing
  - type: GitHub
    url: https://github.com/pusher
  - type: StatusPage
    url: https://status.pusher.com/
  - type: Plans
    url: plans/pusher-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/pusher-rate-limits.yml
  - type: FinOps
    url: finops/pusher-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com