ParlayAPI vs VATlayer
Same instrument, two spec sheets — measured, not claimed.
ParlayAPI vs VATlayer: common questions
Which is more reliable, ParlayAPI or VATlayer?
On our scheduled checks, VATlayer leads on measured uptime — ParlayAPI at 87.5% versus VATlayer at 100% 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, ParlayAPI or VATlayer?
ParlayAPI has the lower median latency in our checks — ParlayAPI responds in 211 ms versus VATlayer at 286 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 ParlayAPI and VATlayer need an API key?
Both ask you to authenticate — ParlayAPI uses an API key and VATlayer 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 ParlayAPI and VATlayer from the browser?
Neither sends browser-friendly CORS headers reliably, so call ParlayAPI and VATlayer from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are ParlayAPI and VATlayer free for commercial use?
ParlayAPI has unclear commercial terms, and VATlayer 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.