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ParlayAPI vs Vercel API

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

APIParlayAPIREACHABLE88Vercel APIDEAD0
Uptime · 30d
Uptime · 90d87.5%0.0%
Uptime · 30d87.5%0.0%
P50 · ms211—
P95 · ms1536—
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished
In directory since2026-10-042026-07-05
operationalpartialdownno data

ParlayAPI vs Vercel API: common questions

Which is more reliable, ParlayAPI or Vercel API?

On our scheduled checks, ParlayAPI leads on measured uptime — ParlayAPI at 87.5% versus Vercel API at 0.0% 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 ParlayAPI and Vercel API need an API key?

Both ask you to authenticate — ParlayAPI uses an API key and Vercel API 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 Vercel API from the browser?

Only Vercel API is browser-friendly — it returns CORS headers over HTTPS. ParlayAPI needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ParlayAPI and Vercel API free for commercial use?

ParlayAPI has unclear commercial terms, and Vercel 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.