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Istanbul (İBB) Open Data vs OpenMercantil

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

APIIstanbul (İBB) Open DataNEW—OpenMercantilNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (varies per dataset)Unverified
Free tierFree — limits not publishedFree — anonymous, no key
Rate limitUnpublished60 req/min, 200 req/day per IP (anonymous)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Istanbul (İBB) Open Data vs OpenMercantil: common questions

Which is more reliable, Istanbul (İBB) Open Data or OpenMercantil?

On our scheduled checks, OpenMercantil leads on measured uptime — Istanbul (İBB) Open Data at —% versus OpenMercantil 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 Istanbul (İBB) Open Data and OpenMercantil need an API key?

Neither needs a paid key — Istanbul (İBB) Open Data is callable with no signup, and OpenMercantil is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Istanbul (İBB) Open Data and OpenMercantil from the browser?

Only OpenMercantil is browser-friendly — it returns CORS headers over HTTPS. Istanbul (İBB) Open Data needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Istanbul (İBB) Open Data and OpenMercantil free for commercial use?

Istanbul (İBB) Open Data has unclear commercial terms, and OpenMercantil 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.