generated: '2026-09-12'
method: searched
source: registry.npmjs.org, pypi.org, https://devportal.gracenote.com/
provider: Gracenote
providerId: gracenote
description: >-
  Gracenote publishes no first-party client library to any public package registry. Its SDKs are real
  and substantial — GNSDK, GNSDK for Mobile, GNSDK for Auto, the Nexus Auto SDK — but all of them are
  distributed as licensed downloads through a Flexera-hosted "Dev Zone" entitlement portal, gated
  behind a customer account. There is nothing an agent or a developer can `npm install` or `pip
  install`. Every Gracenote package on npm is a community wrapper.
official_count: 4
registry_published_count: 0
count_note: >-
  official_count counts first-party Gracenote SDKs that exist and are documented (GNSDK, GNSDK for
  Mobile, GNSDK for Auto, Nexus Auto SDK). registry_published_count counts how many of them can be
  installed from a public package registry: none. Both numbers are true and they mean different things.
packages:
- name: GNSDK
  official: true
  language: C / C++ (with wrappers)
  registry: vendor-portal
  distribution: https://gracenote.flexnetoperations.com/control/grac/product
  docs: https://devportal.gracenote.com/audio/gnsdk-info
  version: null
  published: null
  note: >-
    Gracenote's music/audio recognition SDK. Distributed through the Flexera-hosted Gracenote Dev Zone
    entitlement portal, not a public registry, so no version or release date can be read without a
    customer entitlement. `version: null` here means checked and unreadable, not unchecked.
- name: GNSDK for Mobile
  official: true
  registry: vendor-portal
  distribution: https://gracenote.flexnetoperations.com/control/grac/product?plneID=666851
  docs: https://devportal.gracenote.com/audio/gnsdk-mobile-info
  version: null
  published: null
  note: Same Dev Zone distribution; no public registry metadata endpoint exists to query.
- name: GNSDK for Auto
  official: true
  registry: vendor-portal
  distribution: https://gracenote.flexnetoperations.com/control/grac/product?plneID=633301
  docs: https://devportal.gracenote.com/automotive/gnsdk-auto-info
  version: null
  published: null
  note: Same Dev Zone distribution; no public registry metadata endpoint exists to query.
- name: Nexus Auto SDK
  official: true
  language: Android / Kotlin
  registry: vendor-portal
  docs: https://devportal.gracenote.com/automotive/nexus-auto/nexus-auto-sdk/nexus-auto-sdk-dev-guide
  release_notes: https://devportal.gracenote.com/automotive/nexus-auto/nexus-auto-sdk/nexus-auto-sdk-release-notes
  version: null
  published: null
  note: >-
    Has a published dev guide, SDK reference docs, release notes and a core canary channel on the
    developer portal, but the artifact itself sits behind /automotive/nexus-auto/nexus-sdk-protected —
    a gated route. Not on Maven Central or any other public registry.
third_party:
- name: node-gracenote
  registry: npm
  official: false
  version: 0.0.3
  published: null
  repository: https://github.com/ddanninger/node-gracenote
  note: Community wrapper. Not maintained by Gracenote.
- name: gracenote-onconnect
  registry: npm
  official: false
  version: 0.3.3-unstable
  published: null
  repository: https://github.com/methinksnot/gracenote-onconnect
  note: Community wrapper for the OnConnect (formerly TMS) API. Not maintained by Gracenote.
- name: node-tms-onconnect
  registry: npm
  official: false
  version: 0.2.4
  published: null
  repository: https://github.com/apisandipas/node-tms-onconnect
  note: Community wrapper. Not maintained by Gracenote.
registries_checked:
- registry: npm
  query: gracenote
  result: 5 matches, all third-party community wrappers; no @gracenote or @nielsen scope.
- registry: PyPI
  queries: [gracenote, gracenote-mcp]
  result: 404 on both.
- registry: GitHub
  org: https://github.com/gracenote
  result: >-
    Organization exists (7 public repos, last org update 2024-09-26) but ships no client library —
    timeline-metadata-api, Repographer, django-health-monitor, gnops_bind9, python_meetup,
    sonic-descriptor-api, FakeTraveler. Newest push 2024-01-21.
finding: >-
  The strongest decay signal available here is the absence itself. Gracenote ships two brand-new MCP
  servers (2026) and a freshly rebuilt developer portal, and still offers no installable client for any
  language. The documented integration path for MCP is hand-written code against an OAuth token
  endpoint, with Python snippets in the docs rather than a package.