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EPA vs FEC

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

APIEPANEW—FECREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
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

EPA vs FEC: common questions

Which is more reliable, EPA or FEC?

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

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

Can I call EPA and FEC from the browser?

Yes — both EPA and FEC 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 EPA and FEC free for commercial use?

EPA has unclear commercial terms, and FEC 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.