Colorado Information Marketplace vs Federal Register
Same instrument, two spec sheets — measured, not claimed.
Colorado Information Marketplace vs Federal Register: common questions
Which is more reliable, Colorado Information Marketplace or Federal Register?
On our scheduled checks, Federal Register leads on measured uptime — Colorado Information Marketplace at —% versus Federal Register 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 Colorado Information Marketplace and Federal Register need an API key?
Neither needs a paid key — Colorado Information Marketplace is callable with no signup, and Federal Register is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Colorado Information Marketplace and Federal Register from the browser?
Yes — both Colorado Information Marketplace and Federal Register 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 Colorado Information Marketplace and Federal Register free for commercial use?
Colorado Information Marketplace has unclear commercial terms, and Federal Register allows commercial use on its free tier. 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.