ConvertHub API vs ReqRes

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ConvertHub API vs ReqRes: common questions

Which is more reliable, ConvertHub API or ReqRes?

On our scheduled checks, ReqRes leads on measured uptime — ConvertHub API at —% versus ReqRes at —% 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 ConvertHub API and ReqRes need an API key?

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

Can I call ConvertHub API and ReqRes from the browser?

Neither sends browser-friendly CORS headers reliably, so call ConvertHub API and ReqRes from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ConvertHub API and ReqRes free for commercial use?

ConvertHub API has unclear commercial terms, and ReqRes 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.