PostalPinCode vs Transport for London, England

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

Uptime · 30d
Uptime · 90d98.3%82.0%
Uptime · 30d98.3%100%
P50 · ms699230
P95 · ms37241080
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no key requiredFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

PostalPinCode vs Transport for London, England: common questions

Which is more reliable, PostalPinCode or Transport for London, England?

On our scheduled checks, PostalPinCode leads on measured uptime — PostalPinCode at 98.3% versus Transport for London, England at 82.0% 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, PostalPinCode or Transport for London, England?

Transport for London, England has the lower median latency in our checks — PostalPinCode responds in 699 ms versus Transport for London, England at 230 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 PostalPinCode and Transport for London, England need an API key?

PostalPinCode needs no key, while Transport for London, England requires a free API key. If you want to start calling without signup, reach for PostalPinCode first.

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

Yes — both PostalPinCode 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 PostalPinCode and Transport for London, England free for commercial use?

PostalPinCode 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.