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Art Institute of Chicago vs Chocomilk API

Same instrument, two spec sheets — measured, not claimed.

APIArt Institute of ChicagoNEW—Chocomilk APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC0 1.0 for metadata; 'description' field is CC-BY 4.0Unverified
Free tierFree, no keyFree — limits not published
Rate limit60 requests/min per IP (per docs)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Art Institute of Chicago vs Chocomilk API: common questions

Which is more reliable, Art Institute of Chicago or Chocomilk API?

On our scheduled checks, Chocomilk API leads on measured uptime — Art Institute of Chicago at —% versus Chocomilk API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Art Institute of Chicago and Chocomilk API need an API key?

Neither needs a paid key — Art Institute of Chicago is callable with no signup, and Chocomilk API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Art Institute of Chicago and Chocomilk API from the browser?

Only Art Institute of Chicago is browser-friendly — it returns CORS headers over HTTPS. Chocomilk API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Art Institute of Chicago and Chocomilk API free for commercial use?

Art Institute of Chicago allows commercial use on its free tier, and Chocomilk API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.