Federal Register vs OpenMercantil
Same instrument, two spec sheets — measured, not claimed.
Federal Register vs OpenMercantil: common questions
Which is more reliable, Federal Register or OpenMercantil?
On our scheduled checks, Federal Register leads on measured uptime — Federal Register at 98.0% versus OpenMercantil at 93.1% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, Federal Register or OpenMercantil?
OpenMercantil has the lower median latency in our checks — Federal Register responds in 478 ms versus OpenMercantil at 116 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Federal Register and OpenMercantil need an API key?
Neither needs a paid key — Federal Register is callable with no signup, and OpenMercantil is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Federal Register and OpenMercantil from the browser?
Yes — both Federal Register 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 Federal Register and OpenMercantil free for commercial use?
Federal Register allows commercial use on its free tier, 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.