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FEC vs OpenMercantil

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

APIFECREACHABLE—OpenMercantilNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — anonymous, no key
Rate limitUnpublished60 req/min, 200 req/day per IP (anonymous)
In directory since2026-07-052026-07-05
operationalpartialdownno data

FEC vs OpenMercantil: common questions

Which is more reliable, FEC or OpenMercantil?

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

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

Can I call FEC and OpenMercantil from the browser?

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

FEC has unclear commercial terms, and OpenMercantil 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.