City, Toronto Open Data vs District of Columbia Open Data

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (DC Open Data terms)
Free tierFree — no key required (CKAN)Free — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Toronto Open Data vs District of Columbia Open Data: common questions

Which is more reliable, City, Toronto Open Data or District of Columbia Open Data?

On our scheduled checks, District of Columbia Open Data leads on measured uptime — City, Toronto Open Data at —% versus District of Columbia 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 City, Toronto Open Data and District of Columbia Open Data need an API key?

Neither needs a paid key — City, Toronto Open Data is callable with no signup, and District of Columbia Open Data is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call City, Toronto Open Data and District of Columbia Open Data from the browser?

Only District of Columbia Open Data is browser-friendly — it returns CORS headers over HTTPS. City, Toronto Open Data needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are City, Toronto Open Data and District of Columbia Open Data free for commercial use?

City, Toronto Open Data has unclear commercial terms, and District of Columbia 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.