generated: '2026-08-26'
method: searched
source: >-
  Registry metadata endpoints (registry.npmjs.org, pub.dev/api/packages,
  api.wordpress.org/plugins/info) plus the github.com/payengine organization and the
  public developer docs at https://docs.payengine.co/developer-docs, all fetched
  2026-08-26.
name: PayEngine client libraries and distributions
summary: >-
  PayEngine publishes first-party client libraries across six distribution channels -
  npm (web/JS and React Native), pub.dev (Flutter), WordPress.org (WooCommerce gateway
  plugin), Swift Package Manager (iOS and SoftPOS), and a CDN-hosted web-component
  bundle. All npm packages are published by the payengine-dev account under a
  @payengine.co address, which is how first-party ownership was established. There is no
  Python, Ruby, Go, Java, .NET or Rust client. The PHP SDK on GitHub has not been pushed
  since February 2023 and carries no tagged release.
official_count: 7
registries_checked:
- npm
- pub.dev
- WordPress.org plugin directory
- Swift Package Manager (GitHub tags)
- PyPI
- RubyGems
packages:
- name: payengine
  registry: npm
  url: https://www.npmjs.com/package/payengine
  official: true
  official_evidence: >-
    Sole npm maintainer is payengine-dev <dev@payengine.co>, an address on the company's
    own domain.
  language: javascript
  version: 1.0.13
  published: '2025-08-01'
  release_count: 19
  note: >-
    Registry record carries no description, repository or homepage field, so the package
    is undiscoverable from npm metadata alone.
- name: payengine-react-native
  registry: npm
  url: https://www.npmjs.com/package/payengine-react-native
  official: true
  official_evidence: >-
    Same npm maintainer (payengine-dev <dev@payengine.co>); linked from the PayEngine
    developer docs.
  language: javascript
  version: 1.0.4
  published: '2022-09-23'
  note: >-
    ABANDONMENT SIGNAL - last published 2022-09-23, nearly four years before this probe,
    while the Flutter and Swift SDKs shipped in 2026. React Native consumers are on a
    library that predates 3DS, Tap to Pay, merchant-session security and the whole
    orchestration surface documented today.
- name: payengine
  registry: pub.dev
  url: https://pub.dev/packages/payengine
  official: true
  official_evidence: >-
    pubspec homepage is https://payengine.co; described as "The PayEngine Flutter SDK".
    Linked from the PayEngine developer docs.
  language: dart
  version: 2.1.0
  published: '2026-03-05'
  description: >-
    The PayEngine Flutter SDK allows you to build delightful payment experiences in your
    native Android and iOS apps using Flutter.
- name: payengine-payment-gateway
  registry: wordpress.org
  url: https://wordpress.org/plugins/payengine-payment-gateway/
  official: true
  official_evidence: >-
    Published by the WordPress.org author profile "payengine"; documented in the
    PayEngine developer docs as "PayEngine Payment Gateway for WooCommerce".
  language: php
  version: 1.0.0
  published: '2025-02-19'
  note: WooCommerce payment gateway plugin. Still on its initial 1.0.0 release.
- name: payengine-swift-package
  registry: swift-package-manager
  url: https://github.com/payengine/payengine-swift-package
  official: true
  official_evidence: Published in the github.com/payengine organization.
  language: swift
  version: 1.1.1
  published: '2026-03-05'
  note: >-
    Version read from the newest git tag; SPM has no central registry metadata endpoint.
    Date is the repository's last push (2026-03-05), which is the closest dated signal
    available.
- name: payengine-softpos-swift-package
  registry: swift-package-manager
  url: https://github.com/payengine/payengine-softpos-swift-package
  official: true
  official_evidence: Published in the github.com/payengine organization.
  language: swift
  version: 1.1.7
  published: '2025-12-15'
  note: >-
    SoftPOS / Tap to Pay on iPhone package. Version from newest git tag; date is the
    repository's last push.
- name: payengine-php-sdk
  registry: github
  url: https://github.com/payengine/payengine-php-sdk
  official: true
  official_evidence: Published in the github.com/payengine organization.
  language: php
  version: null
  published: null
  note: >-
    Checked, nothing to record - the repository carries no git tags and is absent from
    Packagist, so there is no released version to report. Last push 2023-02-14, making
    this the most decayed first-party artifact PayEngine ships.
- name: embed.js
  registry: cdn
  url: https://console.payengine.co/js/1.0.0/embed.js
  official: true
  official_evidence: >-
    Served from PayEngine's own console host and documented as the web-component loader
    in the developer docs.
  language: javascript
  version: 1.0.0
  published: null
  note: >-
    Version is pinned in the URL path (/js/1.0.0/), so a consumer can tell what they are
    loading, but a CDN script has no metadata endpoint and no publication date is
    exposed. Its sibling loader /js/1.0.0/securefields.min.js is on the same pinned path.
absent:
- registry: pypi
  checked: '2026-08-26'
  result: 404 - no PayEngine package
- registry: rubygems
  checked: '2026-08-26'
  result: no first-party gem found
- registry: packagist
  checked: '2026-08-26'
  result: PHP SDK is GitHub-only, never published to Packagist