generated: '2026-08-09'
method: searched
source: https://app.1lookup.io/api
description: >-
  1Lookup's published lifecycle posture is thin. The API is versioned only by the /v1 path segment; no
  versioning policy, deprecation policy, Sunset/Deprecation header support, changelog, roadmap or public
  status page was found. SLA commitments are mentioned only as part of a custom enterprise contract.
  Every absence below was probed, not assumed.
versioning:
  scheme: uri-path
  current: v1
  base: https://app.1lookup.io/api/v1
  policy_url: null
  policy_published: false
deprecation:
  policy_url: null
  policy_published: false
  sunset_header: unknown
  deprecation_header: unknown
  note: RFC 8594 Sunset / Deprecation header support is not documented.
change_log:
  url: null
  published: false
  probed:
    - {url: 'https://www.1lookup.io/changelog', status: 404}
roadmap:
  url: null
  published: false
  probed:
    - {url: 'https://www.1lookup.io/roadmap', status: 404}
status_page:
  url: null
  published: false
  probed:
    - {url: 'https://status.1lookup.io', status: 0, note: no DNS resolution}
    - {url: 'https://www.1lookup.io/status', status: 404}
sla:
  url: null
  uptime_target: null
  note: >-
    "SLA commitments" are listed as a feature of the custom enterprise plan (starting at $2,000/month)
    on the pricing page; no public SLA document is published.
  source: https://www.1lookup.io/pricing
data_lifecycle:
  result_cache: 7 days
  data_refresh: Phone and carrier data refreshed every 24 hours from primary sources.
  retention: Automatic data deletion after 30 days.
  source: https://www.1lookup.io/security
deprecated_operations: []
gaps:
  - No public status page or uptime history.
  - No changelog or release notes, so API consumers have no way to detect additive or breaking changes.
  - No deprecation policy or Sunset header contract.
  - No published roadmap.
x-evidence:
  - url: https://app.1lookup.io/api
    http_status: 200
    fetched: '2026-08-09'
  - url: https://www.1lookup.io/changelog
    http_status: 404
    fetched: '2026-08-09'
  - url: https://www.1lookup.io/status
    http_status: 404
    fetched: '2026-08-09'
  - url: https://status.1lookup.io
    http_status: 0
    fetched: '2026-08-09'