TaxID vs Unirate
Same instrument, two spec sheets — measured, not claimed.
TaxID vs Unirate: common questions
Which is more reliable, TaxID or Unirate?
Both are neck-and-neck — TaxID and Unirate each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, TaxID or Unirate?
Unirate has the lower median latency in our checks — TaxID responds in 729 ms versus Unirate at 324 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 TaxID and Unirate need an API key?
Both ask you to authenticate — TaxID uses an API key and Unirate uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call TaxID and Unirate from the browser?
Only Unirate is browser-friendly — it returns CORS headers over HTTPS. TaxID needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are TaxID and Unirate free for commercial use?
TaxID has unclear commercial terms, and Unirate 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.