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APITube vs CustomGPT.ai

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

APIAPITubeDEAD0CustomGPT.aiDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierTrial — API key requiredFree tier — API key required
Rate limitPlan-dependentUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

APITube vs CustomGPT.ai: common questions

Which is more reliable, APITube or CustomGPT.ai?

Both are neck-and-neck — APITube and CustomGPT.ai each measure 0.0% 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.

Do APITube and CustomGPT.ai need an API key?

Both ask you to authenticate — APITube uses an API key and CustomGPT.ai 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 APITube and CustomGPT.ai from the browser?

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

Are APITube and CustomGPT.ai free for commercial use?

APITube has unclear commercial terms, and CustomGPT.ai 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.