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Pendo Feedback API vs US ZipCode

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

APIPendo Feedback APINEW—US ZipCodeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Pendo Feedback API vs US ZipCode: common questions

Which is more reliable, Pendo Feedback API or US ZipCode?

On our scheduled checks, US ZipCode leads on measured uptime — Pendo Feedback API at —% versus US ZipCode 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 Pendo Feedback API and US ZipCode need an API key?

Both ask you to authenticate — Pendo Feedback API uses an API key and US ZipCode 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 Pendo Feedback API and US ZipCode from the browser?

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

Are Pendo Feedback API and US ZipCode free for commercial use?

Pendo Feedback API has unclear commercial terms, and US ZipCode 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.