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Sabre for Developers vs Transport for Spain

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

APISabre for DevelopersHEALTHY94Transport for SpainHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms449603
P95 · ms15311720
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Sabre for Developers vs Transport for Spain: common questions

Which is more reliable, Sabre for Developers or Transport for Spain?

Both are neck-and-neck — Sabre for Developers and Transport for Spain 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, Sabre for Developers or Transport for Spain?

Sabre for Developers has the lower median latency in our checks — Sabre for Developers responds in 449 ms versus Transport for Spain at 603 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 Sabre for Developers and Transport for Spain need an API key?

Transport for Spain needs no key, while Sabre for Developers requires a free API key. If you want to start calling without signup, reach for Transport for Spain first.

Can I call Sabre for Developers and Transport for Spain from the browser?

Only Sabre for Developers is browser-friendly — it returns CORS headers over HTTPS. Transport for Spain needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Sabre for Developers and Transport for Spain free for commercial use?

Sabre for Developers has unclear commercial terms, and Transport for Spain 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.