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Brazil Central Bank Open Data vs Istanbul (İBB) Open Data

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

APIBrazil Central Bank Open DataNEW—Istanbul (İBB) Open DataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (varies per dataset)
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Brazil Central Bank Open Data vs Istanbul (İBB) Open Data: common questions

Which is more reliable, Brazil Central Bank Open Data or Istanbul (İBB) Open Data?

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

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

Can I call Brazil Central Bank Open Data and Istanbul (İBB) Open Data from the browser?

Only Brazil Central Bank Open Data 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 Brazil Central Bank Open Data and Istanbul (İBB) Open Data free for commercial use?

Brazil Central Bank Open Data has unclear commercial terms, and Istanbul (İBB) Open Data 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.