# jchambers/pushy

A Java library for sending APNs (iOS/macOS/Safari) push notifications

Repository: https://github.com/jchambers/pushy
Canonical: https://ross.abutalabs.com/products/pushy
Homepage: https://pushy-apns.org/
Language: Java
License: MIT
License Family: permissive
Topics: notifications, java, apns, push-notifications, ios, macos, safari
Last push: 2026-08-17T18:40:44+00:00

## Health v2 (maintenance only)
Score: 83/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 53, longevity 100
- inputs: {"age_days": 4779, "days_push": 16, "days_rel": 101, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1877, forks 460 (observed 2026-08-28T04:05:47.900563+00:00)

## What it is
Pushy is a Java library for sending push notifications via Apple's HTTP/2-based APNs protocol to iOS, macOS, and Safari devices. It supports TLS and token-based authentication, asynchronous operation, and maintains parallel connections for industrial-scale notification delivery.

## Use cases
- send APNs push notifications from a Java backend
- deliver iOS push notifications at scale
- send push notifications to macOS and Safari apps
- authenticate with APNs using token-based signing keys
- test push notification sending with a mock APNs server
- build APNs notification payloads in Java

## When to choose
- your backend is on the JVM and you need to send Apple push notifications
- you need high-throughput, asynchronous APNs delivery with connection pooling
- you want both TLS-certificate and token-based APNs authentication
- you need a mock APNs server for integration testing

## When to avoid
- you need to send push notifications to Android (FCM) or other platforms
- you want a GUI tool for manually sending test notifications (use Pushy Console instead)
- your stack is not Java/JVM-based

## Facets
- artifact type: library
- maturity: stable
- function: http-client, sdk, middleware
- domain: mobile-development, developer-tools, apis
- platform: jvm, cross-platform
- tags: apns, push-notifications, ios, macos, safari, http2, netty, asynchronous

## Member repositories
- jchambers/pushy (main) score 83

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:47.900563+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:14:42.491023+00:00, confidence not recorded.
  - readme: https://github.com/jchambers/pushy (fetched 2026-08-28T04:05:47.900563+00:00, sha 7ed07ff04931)
  - homepage: https://pushy-apns.org/ (fetched 2026-08-29T10:53:36.215452+00:00, sha 782df8323a41)
  - site_page: http://pushy-apns.org/apidocs/latest (fetched 2026-08-29T10:53:36.219352+00:00, sha 6ba564907869)
  - site_page: https://pushy-apns.org/apidocs/latest (fetched 2026-08-29T10:53:36.221469+00:00, sha 6ba564907869)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/ApnsClient.html (fetched 2026-08-29T10:53:36.223236+00:00, sha bf11da2d0ada)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/ApnsPushNotification.html (fetched 2026-08-29T10:53:36.225123+00:00, sha f0807890990c)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/util/SimpleApnsPayloadBuilder.html (fetched 2026-08-29T10:53:36.226861+00:00, sha e115a8418884)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/util/concurrent/PushNotificationFuture.html (fetched 2026-08-29T10:53:36.228472+00:00, sha 09abadf2b86d)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/proxy/ProxyHandlerFactory.html (fetched 2026-08-29T10:53:36.230315+00:00, sha 363c66b6ad3a)
  - site_page: https://pushy-apns.org/apidocs/0.15/com/eatthepath/pushy/apns/server/MockApnsServerBuilder.html (fetched 2026-08-29T10:53:36.231957+00:00, sha 90ccb938e390)
- Data as of 2026-08-30T08:39:29.467469+00:00.