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Sabre for Developers vs Transport for London, England

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

APISabre for DevelopersHEALTHY94Transport for London, EnglandHEALTHY77
Uptime · 30d
Uptime · 90d100%68.6%
Uptime · 30d100%46.7%
P50 · ms449316
P95 · ms1531732
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Sabre for Developers vs Transport for London, England: common questions

Which is more reliable, Sabre for Developers or Transport for London, England?

On our scheduled checks, Sabre for Developers leads on measured uptime — Sabre for Developers at 100% versus Transport for London, England at 68.6% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Sabre for Developers or Transport for London, England?

Transport for London, England has the lower median latency in our checks — Sabre for Developers responds in 449 ms versus Transport for London, England at 316 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 London, England need an API key?

Both ask you to authenticate — Sabre for Developers uses an API key and Transport for London, England uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Sabre for Developers and Transport for London, England from the browser?

Yes — both Sabre for Developers and Transport for London, England send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Sabre for Developers and Transport for London, England free for commercial use?

Sabre for Developers has unclear commercial terms, and Transport for London, England 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.