generated: '2026-08-13'
method: searched
source: https://api.signal-ai.com/docs + https://signalai.statuspage.io/api/v2/summary.json
versioning:
  scheme: unversioned-host
  current: v1.4
  declared_in_spec: v1.3
  runtime_header: signal-version
  runtime_header_value_observed: '1'
  notes: >-
    The API is served from an unversioned host (https://api.signal-ai.com) with
    no version prefix in the paths and no version request header; the OpenAPI
    document declares openapi 3.1.0 with info.version `v1.3`, while the published
    changelog's newest entry is `v1.4` (04/04/2023) — the two disagree. Responses
    carry a `signal-version: 1` header (observed 2026-08-13) that marks the
    platform generation, not the documented point release.
  changelog: changelog/signal-ai-changelog.yml
deprecation:
  policy_url: null
  sunset_header: false
  deprecation_header: false
  notes: >-
    No published deprecation policy and no RFC 8594 Sunset/Deprecation header
    support was found. Deprecation is signalled in two weaker ways: `deprecated:
    true` on specific operations and schemas in the OpenAPI, and a changelog note
    when an endpoint is retired. The v1.1 entry deprecated `GET
    /affinity/entities` and `GET /affinity/topics`; both are now absent from the
    live spec entirely, so they were removed with no dated sunset and no header
    warning on the wire.
status_page: https://signalai.statuspage.io
status_page_api: https://signalai.statuspage.io/api/v2/summary.json
status_page_evidence:
  probed: '2026-08-13'
  status: 200
  page_id: j3jj9zvhjnwy
  components:
  - name: Application
    status: operational
    description: Main web application and analysis platform
  - name: API
    status: operational
    description: Our Platform API
  note: >-
    Atlassian Statuspage with a machine-readable JSON API and a distinct
    component for the API itself. The page's own `updated_at` is 2020-12-24 and
    the summary reports zero incidents and zero scheduled maintenances on record,
    so uptime history published through this channel is thin.
sla:
  url: null
  uptime_target: null
  notes: No public SLA or uptime commitment is published.
support:
  url: https://signal-ai.com/contact-us
deprecated_operations:
- operationId: get-categories-iptc
  path: GET /categories/iptc-media-topics
  source: openapi/signal-ai-openapi-original.json
- operationId: get-category-iptc
  path: GET /categories/iptc-media-topics/{id}
  source: openapi/signal-ai-openapi-original.json
removed_operations:
- path: GET /affinity/entities
  deprecated_in: v1.1 (17/02/2022)
  removed: absent from the live OpenAPI as of 2026-08-13; no dated sunset published
- path: GET /affinity/topics
  deprecated_in: v1.1 (17/02/2022)
  removed: absent from the live OpenAPI as of 2026-08-13; no dated sunset published
recent_additions:
- path: GET /users
  operationId: list-users
  first_observed: '2026-08-13'
  logged_in_changelog: false
  note: New `Organisation` tag and `manage-organisation` scope, present in the live
    spec but in no changelog entry.