generated: '2026-08-25'
method: searched
source: >-
  rubygems.org API, registry.npmjs.org, pypi.org, repo.packagist.org, api.github.com/orgs/mavenlink, and the
  Kantata OX API reference at developer.kantata.com
checked: '2026-08-25'
notes: >-
  Kantata publishes NO current client SDK for the Kantata OX API. The API reference at developer.kantata.com has
  no libraries, SDKs or code-samples section at all - its only guidance is "if you are using an OAuth2 library,
  many of these steps will be handled for you." One first-party Ruby API client does exist on RubyGems under the
  Mavenlink name, but its newest release is 0.2.7 from 2012-04-10 and it is labelled ALPHA in its own repository
  description - fourteen years older than the 419-operation contract it would have to wrap. Everything else the
  mavenlink GitHub org publishes is framework or design-system code, not an API client. PyPI, Packagist,
  crates.io, NuGet, Maven Central and pkg.go.dev return nothing first-party.
sdk_count: 1
official_sdk_count: 1
current_sdk_count: 0
packages:
- name: mavenlink
  registry: rubygems
  url: https://rubygems.org/gems/mavenlink
  repo: https://github.com/mavenlink/mavenlink_gem
  official: true
  official_basis: Published under the mavenlink GitHub org, whose GitHub display name is "Kantata OX".
  kind: api-client
  language: ruby
  version: 0.2.7
  published: '2012-04-10'
  downloads: 31157
  description: Ruby API client for Mavenlink.
  status: abandoned
  decay_note: >-
    Last release 2012-04-10, fourteen years before this check. The repository description labels it "[ALPHA]".
    It predates the OAuth 2.0 flow, the Subscribed Events API, Insights, rate cards, project accounting and the
    Kantata rename, so it cannot cover the current 419-operation surface. This is the strongest single decay
    signal available for this provider: the only first-party SDK is a decade and a half behind the API.
- name: brainstem
  registry: rubygems
  url: https://rubygems.org/gems/brainstem
  repo: https://github.com/mavenlink/brainstem
  official: true
  kind: server-framework
  language: ruby
  version: 2.3.1
  published: '2019-11-27'
  downloads: 71767
  description: >-
    Rails presenter framework for building APIs that return the side-loaded results[]-plus-id-keyed-collections
    envelope. This is the framework the Kantata OX API's own response format comes from, which is why that
    envelope looks the way it does - but it is a SERVER library, not a client SDK for the Kantata OX API.
  status: stale
  decay_note: Last release 2019-11-27.
- name: brainstem-js
  registry: npm
  url: https://www.npmjs.com/package/brainstem-js
  repo: https://github.com/mavenlink/brainstem-js
  official: true
  kind: client-adapter
  language: javascript
  version: 0.10.0-alpha.1
  published: '2026-02-03'
  description: >-
    Backbone.js companion library that adds an identity map and relational models for consuming Brainstem-shaped
    APIs. It is the closest thing Kantata publishes to a JavaScript client for its own response envelope, but it
    is generic to Brainstem and ships no Kantata OX endpoint bindings.
  status: maintained-prerelease
  decay_note: >-
    Newest published version is an alpha (0.10.0-alpha.1, 2026-02-03) and has been on a pre-1.0 line since 2013.
- name: '@mavenlink/design-system'
  registry: npm
  url: https://www.npmjs.com/package/@mavenlink/design-system
  repo: https://github.com/mavenlink/design-system
  official: true
  kind: ui-components
  language: javascript
  version: 0.104.2
  published: '2022-07-05'
  description: Mavenlink React Components - the product's internal design system.
  status: abandoned
  decay_note: >-
    Last npm release 2022-07-05; the repository last saw a push 2025-08-21. Not an API integration surface - it
    is recorded here rather than in components/ because it is a design system for Mavenlink's own UI, not an
    embeddable customer-facing component library.
registries_checked:
- registry: rubygems
  result: 2 first-party packages found
- registry: npm
  result: 2 first-party packages found; no `mavenlink` or `kantata` API client
- registry: pypi
  result: 404 for both `mavenlink` and `kantata`
- registry: packagist
  result: 404 for mavenlink/mavenlink
- registry: maven-central
  result: no first-party artifact
- registry: nuget
  result: no first-party artifact
- registry: crates.io
  result: no first-party artifact
- registry: pkg.go.dev
  result: no first-party module
related_first_party_tooling:
- name: connector_service_definition
  repo: https://github.com/mavenlink/connector_service_definition
  registry: null
  version: null
  published: null
  note: >-
    Not a package - a published proto3 contract (saved verbatim to grpc/mavenlink-connector.proto) that third
    parties implement to add triggers and actions to the Kantata Workflow Platform. Distributed by repository
    only; no registry, no tag, no release, so there is no version to record. Recorded as null rather than
    omitted: checked, nothing to record.
- name: omniauth-mavenlink
  repo: https://github.com/mavenlink/omniauth-mavenlink
  registry: null
  version: null
  published: null
  note: >-
    OmniAuth strategy for authenticating with Mavenlink. First-party repository, but never published to
    RubyGems - `gem install omniauth-mavenlink` does not resolve, so a consumer must vendor it from git. Version
    is null because there is no registry release to read.