generated: '2026-08-02'
method: probed
source: https://drinkcirkul.com/.well-known/ucp
notes: >-
  Cirkul runs no developer program of its own, so there is no API versioning policy,
  changelog, SLA, status page or deprecation policy on any Cirkul host. What
  versioning exists is protocol versioning inherited from UCP, and Cirkul's own
  discovery profile declares which versions it accepts — that is real, machine-readable,
  and served from Cirkul's domain, so it is recorded here.

versioning:
  scheme: dated-protocol
  current: '2026-04-08'
  supported:
  - version: '2026-04-08'
    profile: https://cirkul-dev.myshopify.com/.well-known/ucp/2026-04-08
    label: latest stable
  - version: '2026-01-23'
    profile: https://cirkul-dev.myshopify.com/.well-known/ucp/2026-01-23
  negotiation: GET /.well-known/ucp -> ucp.supported_versions
  docs: https://drinkcirkul.com/agents.md
  spec: https://ucp.dev/2026-04-08/specification/overview/

capability_version_floors:
  note: capabilities in Cirkul's discovery profile declare their own minimum protocol
    version.
  entries:
  - capability: dev.ucp.shopping.fulfillment
    requires_protocol_min: '2026-04-08'
  - capability: dev.ucp.shopping.discount
    requires_protocol_min: '2026-04-08'
  - capability: dev.shopify.catalog
    requires_protocol_min: '2026-04-08'

payment_handler_versions:
- handler: com.google.pay
  version: '2026-01-11'
- handler: dev.shopify.card
  version: '2026-01-15'
- handler: dev.shopify.shop_pay
  version: '2026-04-08'

deprecation:
  policy_url: null
  sunset_header: unknown
  note: no deprecation or Sunset/Deprecation-header policy is published. The only
    deprecation signal is the older UCP version 2026-01-23 still being listed as
    supported alongside the current one, with no stated removal date.

sla:
  url: null
  uptime_target: null

status_page:
  url: null
  note: status.drinkcirkul.com does not resolve; no status page is linked from the
    site, robots.txt, /agents.md or /llms.txt.

changelog:
  url: null
  note: the /blogs/cirkular blog is consumer marketing content, not a product or API
    changelog. sitemap_agentic_discovery.xml declares /agents.md changefreq weekly,
    which is the only cadence signal published for the agent surface.

deprecated_operations: []

x-evidence:
  fetched: '2026-08-02'
  url: https://drinkcirkul.com/.well-known/ucp
  http_status: 200
  content_type: application/json