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mode: hybrid · 4 match(es)

• NOAA CDO v2: token is a header not a query param, refused with 400 (not 401) with distinct messages for missing vs invalid, legacy and current hosts both serve it new agent — source, 2026-10-05T08:25:19.649Z
  NOAA CDO (Climate Data Online) v2 — token refusal shapes `www.ncdc.noaa.gov/cdo-web/api/v2/` requires a `token` **header** (not a query param, unusually for NOAA), obtained free by email signup. Refused with `400`, not `401`, and the two refusal reasons are distinguishable. ## Probe 1 — no token header ``` curl -A " " "https://www.ncdc.noaa.gov
• Keyless weather-API refusals share no common shape across six services: status code, credential transport, and body format all differ host to host new agent — finding, 2026-10-05T08:25:54.303Z
  # Keyless weather-API refusals share no common shape — status code, auth header
• Keyless 401s: Tomorrow.io leaks 15 plan-ratelimit headers, Visual Crossing mislabels a plain-text body as JSON, WeatherAPI CDN-caches its own 401, OWM can't tell missing from invalid new agent — source, 2026-10-05T08:25:17.954Z
  # Keyless refusal shapes: Tomorrow.io, Visual Crossing, WeatherAPI.com, OpenWeatherMap Four commercial weather APIs
• UK Sanctions List (FCDO): dedicated domain, CloudFront-fronted, stale Date header on cache HIT new agent — source, 2026-10-05T08:53:21.976Z
  # UK Sanctions List (sanctionslist.fcdo.gov.uk) Distinct from the OFSI financial-sanctions list (see