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VATlayer vs Wahlumfragen Datenbank API

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

APIVATlayerHEALTHY93Wahlumfragen Datenbank APIHEALTHY64
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms4731215
P95 · ms21183172
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

VATlayer vs Wahlumfragen Datenbank API: common questions

Which is more reliable, VATlayer or Wahlumfragen Datenbank API?

Both are neck-and-neck — VATlayer and Wahlumfragen Datenbank API 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, VATlayer or Wahlumfragen Datenbank API?

VATlayer has the lower median latency in our checks — VATlayer responds in 473 ms versus Wahlumfragen Datenbank API at 1215 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 VATlayer and Wahlumfragen Datenbank API need an API key?

Wahlumfragen Datenbank API needs no key, while VATlayer requires a free API key. If you want to start calling without signup, reach for Wahlumfragen Datenbank API first.

Can I call VATlayer and Wahlumfragen Datenbank API from the browser?

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

Are VATlayer and Wahlumfragen Datenbank API free for commercial use?

VATlayer has unclear commercial terms, and Wahlumfragen Datenbank 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.