generated: '2026-07-26'
method: searched
source: >-
  Probes of the Knight Frank web estate on 2026-07-26 (corporate sites, sitemaps,
  status/developer subdomains) plus openapi/knight-frank-api-v3-openapi.json.
  Every "none" below is a recorded probe result, not an assumption.
description: >-
  Knight Frank operates its APIs as internal plumbing, so there is no lifecycle
  contract of any kind for an outside consumer: no versioning policy, no
  deprecation policy, no Sunset/Deprecation headers, no SLA, no status page and
  no changelog. The only version signal in the estate is the hostname — api-v2
  and api-v3 run side by side, the older one carrying the property/account
  surface and the newer one the corporate search surface.
versioning:
  scheme: host-based
  mechanism: version encoded in the hostname (api-v2 / api-v3)
  current: api-v3
  spec_declared_version: v1
  inconsistency: >-
    The OpenAPI document served from the api-v3 host self-reports info.version
    "v1". The host name and the document disagree, and no policy reconciles them.
  policy_url: null
  docs: null
  concurrent_versions:
    - host: https://api-v2.web.prd-knightfrank.com
      status: live
      surface: property search, saved properties, saved searches, alerts, consumer account
      auth: Azure AD B2C bearer (401 to anonymous callers)
      contract_published: false
    - host: https://api-v3.web.prd-knightfrank.com
      status: live
      surface: CMS search, Intelligence Lab, offices, people, cross-site search, service lines, telemetry
      auth: none
      contract_published: true (unadvertised Swagger UI + OpenAPI 3.0.1)
deprecation:
  policy_url: null
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  notice_period: null
  note: >-
    No deprecation policy is published and no RFC 8594 Sunset or Deprecation
    header was observed on any response. Nothing prevents either host from being
    withdrawn or re-shaped without notice — the api-v3 contract is unadvertised,
    so there is no audience to notify.
deprecated_operations: []
deprecated_operations_note: >-
  No operation in openapi/knight-frank-api-v3-openapi.json carries
  `deprecated: true`.
sla:
  url: null
  uptime_target: null
  support_commitment: null
  note: >-
    No API service-level agreement, and no API terms of use to attach one to.
status_page:
  url: null
  probed:
    - url: https://status.knightfrank.com/
      status: '000'
      note: does not resolve — no DNS A record
  note: No status page, no incident history, no uptime feed.
changelog:
  url: null
  note: >-
    No changelog exists. There is no developer portal to publish one on, and the
    OpenAPI document carries no release metadata beyond info.version "v1".
support:
  developer_channel: null
  general_contact: https://www.knightfrank.co.uk/contact-us
  note: >-
    The only published route to any Knight Frank conversation is the general
    corporate contact form — there is no developer support channel, no forum and
    no ticketing surface.