TaxID vs VATComply
Same instrument, two spec sheets — measured, not claimed.
TaxID vs VATComply: common questions
Which is more reliable, TaxID or VATComply?
Both are neck-and-neck — TaxID and VATComply 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 VATComply?
VATComply has the lower median latency in our checks — TaxID responds in 729 ms versus VATComply at 236 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 VATComply need an API key?
VATComply needs no key, while TaxID requires a free API key. If you want to start calling without signup, reach for VATComply first.
Can I call TaxID and VATComply from the browser?
Only VATComply 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 VATComply free for commercial use?
TaxID has unclear commercial terms, and VATComply 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.