generated: '2026-07-28' method: searched source: >- npm registry search (registry.npmjs.org/-/v1/search?text=heathrow), PyPI (pypi.org/pypi/{heathrow,heathrow-api,pyheathrow}/json), the GitHub org/user API for heathrow / heathrowairport / HeathrowAirport / lhr-airports, GitHub repository search for "heathrow api", and every public page of the Heathrow developer portal (developer.heathrow.com/api-flights, /api-connections, /api-weather, /how-it-works, /apis, /products). description: >- Heathrow Airport publishes no first-party client libraries in any package registry, and operates no GitHub organisation. The developer portal offers no SDK, no code samples and no download of any kind to an anonymous visitor - the only route it describes is emailing support@heathrow.com to be enrolled, after which access is via a Microsoft Entra ID (Azure AD) account and a Heathrow-issued client certificate. Whether Heathrow ships SDKs to enrolled developers behind the gate is not observable from outside. packages: [] findings: - registry: npm query: heathrow result: >- No first-party package. The name "heathrow" is taken by an unrelated web content framework; the remaining matches are airport-data utilities and spam. status: 200 - registry: pypi query: heathrow / heathrow-api / pyheathrow result: All 404 - no project under any of these names. status: 404 - registry: github query: orgs/heathrow, orgs/heathrowairport, orgs/HeathrowAirport, orgs/lhr-airports result: >- All 404. Heathrow Airport Limited has no GitHub organisation. The github.com/Heathrow account is an unrelated personal user. status: 404 - registry: github-search query: heathrow api in:name,description result: >- No Heathrow-owned repository. Matches are third-party hobby projects and this catalog's own profile repo. status: 200 - registry: maven-central / nuget / pkg.go.dev / rubygems / packagist / crates.io query: heathrow result: Not probed individually - no evidence anywhere on the developer portal that Heathrow ships a client library in any language. official_sdk_count: 0