generated: '2026-08-13'
method: searched
source: >-
  registry metadata endpoints (repo.packagist.org, registry.npmjs.org, api.wordpress.org),
  api.github.com/orgs/omnisend/repos, and https://api-docs.omnisend.com/reference/getting-started
description: >-
  First-party Omnisend client libraries and platform plugins, read from the registries that publish
  their version and release date. The finding worth recording is that Omnisend's only first-party
  API SDK — omnisend/php-sdk on Packagist — last released 1.2 on 2020-07-24 and wraps API v3, while
  the current contract is 2026-03-15 served at https://api.omnisend.com/api. Its GitHub repository
  is archived. Omnisend's living distribution effort is in WordPress/WooCommerce plugins, not SDKs.
  Omnisend's own getting-started page points integrators at raw curl and the Postman collection —
  it does not offer an SDK.

packages:
  - language: php
    registry: packagist
    name: omnisend/php-sdk
    url: https://packagist.org/packages/omnisend/php-sdk
    repository: https://github.com/omnisend/php-sdk
    install: composer require omnisend/php-sdk
    official: true
    kind: sdk
    version: '1.2'
    published: '2020-07-24'
    api_version_wrapped: v3
    note: >-
      Stale. Three published versions total; latest 1.2 (2020-07-24). Describes itself as a
      "Simple to use Omnisend API v3 wrapper". The GitHub repository is ARCHIVED (last push
      2021-07-01). It cannot reach the 2026-03-15 contract, which requires the
      `Omnisend-Version` header and the /api base path. 256,399 lifetime installs.

  - language: php
    registry: wordpress.org
    name: omnisend
    display_name: "Newsletters, Email Marketing, SMS and Popups by Omnisend"
    url: https://wordpress.org/plugins/omnisend/
    repository: https://github.com/omnisend/wp-omnisend
    official: true
    kind: plugin
    version: 1.8.0
    published: '2026-07-27'
    downloads: 901933
    note: Core WordPress plugin. Actively maintained (repo pushed 2026-08-12).

  - language: php
    registry: wordpress.org
    name: omnisend-connect
    display_name: Email Marketing for WooCommerce by Omnisend
    url: https://wordpress.org/plugins/omnisend-connect/
    official: true
    kind: plugin
    version: 1.22.0
    published: '2026-08-12'
    downloads: 997669
    note: WooCommerce connector — the most-installed and most recently released first-party artifact Omnisend ships.

  - language: php
    registry: wordpress.org
    name: omnisend-for-contact-form-7
    display_name: Omnisend for Contact Form 7 Add-On
    url: https://wordpress.org/plugins/omnisend-for-contact-form-7/
    repository: https://github.com/omnisend/wp-omnisend-contact-form-7
    official: true
    kind: plugin
    version: 1.2.0
    published: '2026-07-23'
    downloads: 6694

  - language: javascript
    registry: npm
    name: "@omnisend-ui/ui-react"
    url: https://www.npmjs.com/package/@omnisend-ui/ui-react
    install: npm install @omnisend-ui/ui-react
    official: true
    kind: design-system
    version: 2.2.0
    published: '2025-04-28'
    note: >-
      Published by the `omnisend-fe` npm account and described as "Omnisend UI component library for
      React". This is Omnisend's internal design system, NOT an API client — it is recorded here for
      completeness and is deliberately not counted as an SDK. No repository or homepage is declared
      on the package.

  - language: javascript
    registry: npm
    name: "@omnisend-ui/ui-theme"
    url: https://www.npmjs.com/package/@omnisend-ui/ui-theme
    official: true
    kind: design-system
    version: 2.0.10
    published: '2025-04-28'
    note: Theme package for the same internal design system. Not an API client.

  - language: javascript
    registry: cdn
    name: launcher-v2.js
    url: https://omnisnippet1.com/inshop/launcher-v2.js
    official: true
    kind: browser-snippet
    version: null
    published: null
    note: >-
      The Omnisend JavaScript snippet, loaded from omnisnippet1.com by a script tag documented at
      https://api-docs.omnisend.com/reference/javascript-snippet. The URL is UNPINNED — it always
      floats to whatever `launcher-v2.js` currently is, so a consumer cannot tell what build they are
      running, and neither can we. No registry metadata endpoint exists for it. Recorded as
      version: null deliberately: checked, nothing datable to record.

archived:
  - name: omnisend/magento2-plugin
    url: https://github.com/omnisend/magento2-plugin
    kind: plugin
    archived: true
    last_push: '2023-07-11'
    note: >-
      apis.yml still advertises this as a Magento 2 plugin. The GitHub repository is archived and has
      not been pushed since 2023-07-11.

not_published:
  - registry: pypi
    query: omnisend
    status: 404
    note: No first-party Python client.
  - registry: rubygems
    query: omnisend
    status: 404
    note: No first-party Ruby client.
  - registry: npm
    query: omnisend
    note: >-
      npm search returns only third-party wrappers — react-omnisend, omnisend-node-sdk (ajmnz, last
      release 2023-08-05), @pipedream/omnisend, @activepieces/piece-omnisend, n8n-nodes-omnisend.
      None is first-party; none is recorded as official.
  - registry: [maven, nuget, go, crates]
    note: No first-party Omnisend packages found.

summary:
  official_sdks: 1
  official_sdks_current: 0
  official_plugins: 3
  languages: [php]
  note: >-
    sdk_count is 1 on paper and 0 in practice: the single first-party SDK targets a retired API
    version and its repository is archived.