generated: '2026-07-25'
method: searched
source: >-
  SK open API product pages (openapi.sk.com/products/detail?svcSeq=*, "API 테스트" tab), the
  ReadMe API Explorer on the *-skopenapi.readme.io reference hubs, and the x-readme extension
  block in openapi/sk-telecom-ax-tts-openapi.json.
summary: >-
  SK Telecom publishes an interactive try-it console but no sandbox environment. There is one
  set of hosts, one gateway and one credential type: calls made from the console are live calls
  against apis.openapi.sk.com metered against the app's plan. There is no test mode, no test
  key prefix, no separate sandbox base URL, no fixture or trigger tooling and no time
  simulation. Free-tier daily quotas are the only thing standing in for a sandbox.
test_live_separation:
  modes: [live]
  key_prefixes: none
  separate_host: false
  note: >-
    The appKey issued in 마이페이지 > 앱 > 앱키 is a production key. No test/live distinction is
    documented anywhere on the portal.
consoles:
- name: API 테스트
  kind: portal try-it console
  url: https://openapi.sk.com/products/detail?svcSeq=56
  scope: per product, on each product detail page
  auth: requires sign-in and an issued appKey
- name: ReadMe API Explorer
  kind: docs try-it console
  urls:
  - https://ax-tts-skopenapi.readme.io/reference/text-to-speech-tts
  - https://nugufacecan-skopenapi.readme.io/reference/face-detect-1
  - https://puzzle-skopenapi.readme.io/reference/poicongestionrltm
  - https://meta-skopenapi.readme.io/reference/lpr-1
  evidence: >-
    openapi/sk-telecom-ax-tts-openapi.json declares x-readme.explorer-enabled true and
    x-readme.proxy-enabled true.
  auth: requires the caller's own appKey
test_values:
  published: false
  note: >-
    No magic test identifiers, test images, test POI ids or test device serial numbers are
    published. The specs carry ReadMe x-default placeholder values (demo app-id/group-id/
    subject-id strings and a placeholder appKey) which are explorer defaults, not documented
    test credentials, and are deliberately not reproduced here as usable test data.
test_clock: false
fixtures: false
free_tier:
  exists: true
  shape: per-API-group daily call quotas on a Free 상품 (plan)
  detail: rate-limits/sk-telecom-rate-limits.yml