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BdAPIs vs Zipcodestack

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

APIBdAPIsNEW—ZipcodestackNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no API keyFree tier — API key required
Rate limit100 req/window · 98 remaining · resets 324Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BdAPIs vs Zipcodestack: common questions

Which is more reliable, BdAPIs or Zipcodestack?

On our scheduled checks, Zipcodestack leads on measured uptime — BdAPIs at —% versus Zipcodestack 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 BdAPIs and Zipcodestack need an API key?

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

Can I call BdAPIs and Zipcodestack from the browser?

Yes — both BdAPIs and Zipcodestack 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 BdAPIs and Zipcodestack free for commercial use?

BdAPIs has unclear commercial terms, and Zipcodestack 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.