VALR vs Block Lottos

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree, no key (API docs state no key required)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

VALR vs Block Lottos: common questions

Which is more reliable, VALR or Block Lottos?

Only Block Lottos is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do VALR and Block Lottos need an API key?

Block Lottos needs no key, while VALR requires a free API key. If you want to start calling without signup, reach for Block Lottos first.

Can I call VALR and Block Lottos from the browser?

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

Are VALR and Block Lottos free for commercial use?

VALR has unclear commercial terms, and Block Lottos 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.