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Court Rules vs Lookup.im API

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

APICourt RulesDYING37Lookup.im APIHEALTHY89
Uptime · 30d
Uptime · 90d0.0%97.8%
Uptime · 30d0.0%98.3%
P50 · ms—180
P95 · ms—3581
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished
In directory since2026-10-042026-07-05
operationalpartialdownno data

Court Rules vs Lookup.im API: common questions

Which is more reliable, Court Rules or Lookup.im API?

On our scheduled checks, Lookup.im API leads on measured uptime — Court Rules at 0.0% versus Lookup.im API at 97.8% 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 Court Rules and Lookup.im API need an API key?

Court Rules needs no key, while Lookup.im API requires a free API key. If you want to start calling without signup, reach for Court Rules first.

Can I call Court Rules and Lookup.im API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Court Rules and Lookup.im API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Court Rules and Lookup.im API free for commercial use?

Court Rules has unclear commercial terms, and Lookup.im API 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.