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CarAPI vs Metro Lisboa

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

APICarAPIHEALTHY70Metro LisboaHEALTHY82
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms12231308
P95 · ms22872459
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CarAPI vs Metro Lisboa: common questions

Which is more reliable, CarAPI or Metro Lisboa?

Both are neck-and-neck — CarAPI and Metro Lisboa each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, CarAPI or Metro Lisboa?

CarAPI has the lower median latency in our checks — CarAPI responds in 1223 ms versus Metro Lisboa at 1308 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do CarAPI and Metro Lisboa need an API key?

Metro Lisboa needs no key, while CarAPI requires a free API key. If you want to start calling without signup, reach for Metro Lisboa first.

Can I call CarAPI and Metro Lisboa from the browser?

Neither sends browser-friendly CORS headers reliably, so call CarAPI and Metro Lisboa from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are CarAPI and Metro Lisboa free for commercial use?

CarAPI has unclear commercial terms, and Metro Lisboa 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.