generated: '2026-08-13'
method: searched
source: >-
  Public package registries (rubygems.org, pypi.org, packagist.org, repo1.maven.org,
  registry.npmjs.org) plus the github.com/zendesk organization, which hosts the four
  first-party Base CRM / Zendesk Sell API client libraries.
note: >-
  Every first-party Zendesk Sell SDK last shipped in 2021 — the newest release across
  all four official libraries is basecrm (Ruby) 2.0.0 on 2021-10-27. Zendesk announced
  on 2025-09-09 that Sell is retired on 2027-08-31, so the client-library surface is
  frozen. The npm `basecrm` package is a third-party wrapper by an individual author,
  not a Zendesk release. Versions and publish dates were read from each registry's
  metadata endpoint on 2026-08-13.
packages:
- language: ruby
  registry: rubygems
  name: basecrm
  url: https://rubygems.org/gems/basecrm
  install: gem install basecrm
  source_code: https://github.com/zendesk/basecrm-ruby
  official: true
  version: 2.0.0
  published: '2021-10-27'
  note: >-
    Registry metadata lists author "Zendesk" and homepage github.com/zendesk/basecrm-ruby.
    Latest GitHub release tag v2.0.0 (2021-10-27) matches the published gem.
- language: python
  registry: pypi
  name: basecrm
  url: https://pypi.org/project/basecrm/
  install: pip install basecrm
  source_code: https://github.com/zendesk/basecrm-python
  official: true
  version: 1.2.9
  published: '2020-05-13'
  note: >-
    Registry author "Zendesk" (opensource@zendesk.com). PyPI is BEHIND the repository:
    GitHub carries release v1.2.10 (2021-06-29) that was never published to PyPI, so an
    installer gets 1.2.9 from 2020-05-13.
- language: php
  registry: packagist
  name: basecrm/basecrm-php
  url: https://packagist.org/packages/basecrm/basecrm-php
  install: composer require basecrm/basecrm-php
  source_code: https://github.com/zendesk/basecrm-php
  official: true
  version: v1.4.4
  published: '2021-06-29'
  note: Packagist repository resolves to github.com/zendesk/basecrm-php.
- language: java
  registry: maven
  name: com.getbase:basecrm-java
  url: https://central.sonatype.com/artifact/com.getbase/basecrm-java
  install: "<dependency><groupId>com.getbase</groupId><artifactId>basecrm-java</artifactId><version>1.5.1</version></dependency>"
  source_code: https://github.com/zendesk/basecrm-java
  official: true
  version: 1.5.1
  published: '2021-04-19'
  note: >-
    Read from repo1.maven.org/maven2/com/getbase/basecrm-java/maven-metadata.xml
    (latest 1.5.1, lastUpdated 20210419). GitHub has a later tag v1.5.2 (2021-06-29)
    that was never released to Maven Central.
- language: javascript
  registry: npm
  name: basecrm
  url: https://www.npmjs.com/package/basecrm
  install: npm install basecrm
  source_code: https://github.com/yurypaleev/BaseCRM
  official: false
  version: 0.1.3
  published: '2017-05-12'
  note: >-
    Third-party. Registry author is an individual (Yury Paleev) and the repository is a
    personal fork, not github.com/zendesk. Zendesk publishes no official Node client for
    the Sell API.
- language: javascript
  registry: npm
  name: "@zendesk/zcli"
  url: https://www.npmjs.com/package/@zendesk/zcli
  install: npm install @zendesk/zcli -g
  source_code: https://github.com/zendesk/zcli
  official: true
  version: 1.1.4
  published: '2026-07-20'
  note: >-
    Zendesk's platform CLI for building and deploying Zendesk apps and themes — the tooling
    used for Sell apps. It is NOT a Sell REST API client; see cli/zendesk-sell-cli.yml.
    The only actively-maintained first-party package touching the Sell developer surface.
official_count: 5
sdk_count: 4