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jobdata API vs mailboxlayer

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

APIjobdata APINEW—mailboxlayerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

jobdata API vs mailboxlayer: common questions

Which is more reliable, jobdata API or mailboxlayer?

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

Both ask you to authenticate — jobdata API uses an API key and mailboxlayer 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 jobdata API and mailboxlayer from the browser?

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

Are jobdata API and mailboxlayer free for commercial use?

jobdata API has unclear commercial terms, and mailboxlayer 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.