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Postman Echo vs US Street Address

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

APIPostman EchoNEW—US Street AddressNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Postman Echo vs US Street Address: common questions

Which is more reliable, Postman Echo or US Street Address?

On our scheduled checks, US Street Address leads on measured uptime — Postman Echo at —% versus US Street Address 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 Postman Echo and US Street Address need an API key?

Postman Echo needs no key, while US Street Address requires a free API key. If you want to start calling without signup, reach for Postman Echo first.

Can I call Postman Echo and US Street Address from the browser?

Only US Street Address is browser-friendly — it returns CORS headers over HTTPS. Postman Echo needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Postman Echo and US Street Address free for commercial use?

Postman Echo has unclear commercial terms, and US Street Address 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.