generated: '2026-08-14'
method: searched
source: >-
  Public package registries (registry.npmjs.org, pypi.org, rubygems.org,
  api.nuget.org, repo1.maven.org, repo.packagist.org, proxy.golang.org,
  pub.dev) plus the Mailosaur GitHub organization
  (https://github.com/mailosaur) and https://mailosaur.com/docs/automation
notes:
  - >-
    Mailosaur maintains one first-party client library per language, all under
    the github.com/mailosaur organization and all linked from the official
    automation docs. Eight of the ten libraries were re-released together on
    2026-05-27, so the SDK fleet is current with the API rather than trailing it.
  - >-
    mailosaur-swift is distributed only through Swift Package Manager (a git tag,
    no central registry), and Swift Package Index carries no queryable release
    metadata endpoint, so `version` is recorded null rather than guessed.
  - >-
    The Dart client (pub.dev/packages/mailosaur, 1.0.1) is the oldest release in
    the fleet — 2025-04-24, more than a year behind the 2026-05-27 group release.
packages:
  - language: javascript
    registry: npm
    name: mailosaur
    url: https://www.npmjs.com/package/mailosaur
    install: npm install mailosaur
    repository: https://github.com/mailosaur/mailosaur-node
    version: 11.1.1
    published: '2026-05-27'
    official: true
  - language: javascript
    registry: npm
    name: cypress-mailosaur
    url: https://www.npmjs.com/package/cypress-mailosaur
    install: npm install cypress-mailosaur --save-dev
    repository: https://github.com/mailosaur/cypress-mailosaur
    version: 5.0.0
    published: '2026-02-17'
    official: true
    note: Cypress plugin exposing Mailosaur commands inside a Cypress test run.
  - language: javascript
    registry: npm
    name: create-mailosaur
    url: https://www.npmjs.com/package/create-mailosaur
    install: npm create mailosaur@latest
    repository: https://github.com/mailosaur/create-mailosaur
    version: 1.0.9
    published: '2026-05-27'
    official: true
    note: >-
      Project scaffolder / CLI wizard, not a client library. Command surface is
      captured in cli/mailosaur-cli.yml.
  - language: python
    registry: pypi
    name: mailosaur
    url: https://pypi.org/project/mailosaur/
    install: pip install mailosaur
    repository: https://github.com/mailosaur/mailosaur-python
    version: 8.1.1
    published: '2026-05-27'
    official: true
  - language: ruby
    registry: rubygems
    name: mailosaur
    url: https://rubygems.org/gems/mailosaur
    install: gem install mailosaur
    repository: https://github.com/mailosaur/mailosaur-ruby
    version: 8.1.1
    published: '2026-05-27'
    official: true
  - language: csharp
    registry: nuget
    name: Mailosaur
    url: https://www.nuget.org/packages/Mailosaur/
    install: dotnet add package Mailosaur
    repository: https://github.com/mailosaur/mailosaur-dotnet
    version: 9.1.1
    published: '2026-05-27'
    official: true
  - language: java
    registry: maven
    name: com.mailosaur:mailosaur-java
    url: https://central.sonatype.com/artifact/com.mailosaur/mailosaur-java
    install: 'implementation "com.mailosaur:mailosaur-java:9.1.1"'
    repository: https://github.com/mailosaur/mailosaur-java
    version: 9.1.1
    published: '2026-05-27'
    official: true
  - language: php
    registry: packagist
    name: mailosaur/mailosaur
    url: https://packagist.org/packages/mailosaur/mailosaur
    install: composer require mailosaur/mailosaur
    repository: https://github.com/mailosaur/mailosaur-php
    version: 8.1.1
    published: '2026-05-27'
    official: true
  - language: go
    registry: go
    name: github.com/mailosaur/mailosaur-go
    url: https://pkg.go.dev/github.com/mailosaur/mailosaur-go
    install: go get github.com/mailosaur/mailosaur-go
    repository: https://github.com/mailosaur/mailosaur-go
    version: v0.0.0-20260527102007-dfa120292622
    published: '2026-05-27'
    official: true
    note: >-
      Published as a pseudo-version — the module has no semantic-version tag, so
      consumers pin a commit rather than a release.
  - language: dart
    registry: pub.dev
    name: mailosaur
    url: https://pub.dev/packages/mailosaur
    install: dart pub add mailosaur
    repository: https://github.com/mailosaur/mailosaur-dart
    version: 1.0.1
    published: '2025-04-24'
    official: true
  - language: swift
    registry: swift-package-manager
    name: mailosaur-swift
    url: https://github.com/mailosaur/mailosaur-swift
    install: '.package(url: "https://github.com/mailosaur/mailosaur-swift.git", from: "1.0.0")'
    repository: https://github.com/mailosaur/mailosaur-swift
    version: null
    published: null
    official: true
    note: >-
      Checked — Swift Package Manager distributes from a git tag with no central
      registry metadata endpoint, so there is no published version/date to read.