generated: '2026-07-27'
method: searched
source: live queries against the public package registries, 2026-07-27
result: none
packages: []
official_sdk_count: 0
summary: >-
  Landis+Gyr publishes NO first-party client library on any public package registry, in any
  language. Eight registries were queried for "landisgyr", "landis-gyr" and "gridstream" and
  every one returned zero first-party results. This is consistent with the rest of the
  profile: there is no public API to build an SDK against, and the only development surface
  Landis+Gyr advertises — App Studio for Gridstream Connect / Revelo edge apps — is a
  Java on-device application environment distributed through an approval-gated developer
  portal, not a published artifact repository.
registries_probed:
- registry: npm
  query: landisgyr
  hits: 0
  note: One unrelated result ("hb-p1-tools", a third-party Homebridge plugin). "gridstream" returned only "GridFS".
- registry: pypi
  queries: [landisgyr, landis-gyr, gridstream]
  hits: 0
  note: All three project pages return 404.
- registry: maven-central
  query: landisgyr
  hits: 0
  note: >-
    Notable because App Studio is a "Java-based Application Development Environment" —
    the meter-app SDK is not published to Maven Central.
- registry: nuget
  query: landisgyr
  hits: 0
- registry: rubygems
  query: landisgyr
  hits: 0
- registry: packagist
  query: landisgyr
  hits: 0
- registry: crates.io
  query: landisgyr
  hits: 0
- registry: pkg.go.dev
  query: landisgyr
  hits: 0
adjacent_findings:
- kind: postman
  finding: >-
    Two public Postman TEAM pages exist — "LandisGyrHess" (handle landisgyrhess) and
    "Landis+Gyr SWSS" (handle landisgyr-swss) — but both report collectionCount 0,
    workspaceCount 0 and apiCount 0. No public collection, workspace or API is published,
    so no `Postman` pointer is wired into apis.yml.
- kind: github
  finding: >-
    github.com/landisgyr resolves to an individual's personal account, not the company.
    No Landis+Gyr GitHub organization exists, so there is no source to harvest packages from.
- kind: distribution-channel
  finding: >-
    The actual developer distribution channel is the approval-gated developer portal at
    developers.landisgyr.com — App Studio plus a Revelo Developer Kit (virtual or hardware)
    requested at /request-devkit. Nothing renders or downloads without an approved account.