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Agent Gateway API vs Pharos API

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

APIAgent Gateway APINEW—Pharos APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Agent Gateway API vs Pharos API: common questions

Which is more reliable, Agent Gateway API or Pharos API?

On our scheduled checks, Pharos API leads on measured uptime — Agent Gateway API at —% versus Pharos API 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 Agent Gateway API and Pharos API need an API key?

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

Can I call Agent Gateway API and Pharos API from the browser?

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

Are Agent Gateway API and Pharos API free for commercial use?

Agent Gateway API has unclear commercial terms, and Pharos 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.