generated: '2026-07-26'
method: searched
source: >-
  npm registry search, PyPI, and the LandRegistry GitHub organisation (probed
  2026-07-26)
summary: >-
  HM Land Registry publishes no first-party API client library in any language.
  The @hmlr npm scope is real and first-party — the packages are authored from
  landregistry.gov.uk addresses and built from repositories in the LandRegistry
  GitHub organisation — but every one of them is a front-end / design-system
  package, not an API SDK. There is no HMLR client for the Business Gateway REST
  or SOAP services, none for the Use land and property data service, and none for
  the SPARQL or Linked Data endpoints. Integration is either hand-rolled against
  the published contracts or bought in through a third-party case management
  system. Because no official client library exists, this artifact deliberately
  does NOT carry an SDKs pointer in apis.yml.
official_api_clients: none
packages:
- language: javascript
  registry: npm
  name: "@hmlr/frontend"
  version: 2.1.0-rc.2
  url: https://www.npmjs.com/package/@hmlr/frontend
  install: npm install @hmlr/frontend
  repository: https://github.com/LandRegistry/hmlr-frontend
  official: true
  kind: frontend
  api_client: false
  description: HM Land Registry frontend styles.
  maintainer_evidence: author andrew.hosgood@landregistry.gov.uk
- language: javascript
  registry: npm
  name: "@hmlr/govuk-react-components-library"
  version: 1.2.2
  url: https://www.npmjs.com/package/@hmlr/govuk-react-components-library
  install: npm install @hmlr/govuk-react-components-library
  repository: https://github.com/LandRegistry/govuk-react-components-library
  official: true
  kind: ui-components
  api_client: false
  description: >-
    Common React components based on the GOV.UK Design System and govuk-frontend.
- language: javascript
  registry: npm
  name: "@hmlr/eslint-config"
  version: 1.2.0-rc.2
  url: https://www.npmjs.com/package/@hmlr/eslint-config
  install: npm install --save-dev @hmlr/eslint-config
  repository: https://github.com/LandRegistry/eslint-config
  official: true
  kind: tooling
  api_client: false
  description: HMLR shareable ESLint config.
  maintainer_evidence: author andrew.hosgood@landregistry.gov.uk
third_party:
  note: >-
    Recorded for completeness. None of these is published, endorsed or maintained
    by HM Land Registry, and each targets only the open Price Paid Data surface —
    not the Business Gateway.
  packages:
  - language: javascript
    registry: npm
    name: uk-land-registry-price-mcp
    version: 0.1.0
    url: https://www.npmjs.com/package/uk-land-registry-price-mcp
    official: false
    kind: mcp-server
    description: >-
      Community MCP server over UK HM Land Registry sold house prices (Price Paid
      Data).
  - language: javascript
    registry: npm
    name: "@pipeworx/mcp-landregistry-uk"
    version: 0.1.0
    url: https://www.npmjs.com/package/@pipeworx/mcp-landregistry-uk
    repository: https://github.com/pipeworx-io/mcp-landregistry-uk
    official: false
    kind: mcp-server
    description: HM Land Registry Price Paid Data (UK) MCP server.
  - language: javascript
    registry: npm
    name: "@n8n-dev/n8n-nodes-landregistry-gov-deed"
    url: https://www.npmjs.com/package/@n8n-dev/n8n-nodes-landregistry-gov-deed
    official: false
    kind: workflow-node
    description: n8n community node for a Land Registry deed API.
  - language: javascript
    registry: npm
    name: inspirepolygonsdownloader
    url: https://www.npmjs.com/package/inspirepolygonsdownloader
    official: false
    kind: data-tool
    description: Downloads and munges HM Land Registry INSPIRE polygons.
registries_checked:
- registry: npm
  result: 3 official @hmlr packages, all front-end/tooling; no API client
- registry: pypi
  result: >-
    no HM Land Registry package. The name "hmlr" on PyPI is an unrelated
    third-party AI memory system (HMLR-Agentic-AI-Memory-System), and
    landregistry, land-registry and hm-land-registry are all 404.
- registry: maven-central
  result: none
- registry: nuget
  result: none
- registry: pkg.go.dev
  result: none
- registry: rubygems
  result: none
- registry: packagist
  result: none
- registry: crates.io
  result: none