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APIs.guru vs Packagist

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

APIAPIs.guruNEW—PackagistNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree and open, no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

APIs.guru vs Packagist: common questions

Which is more reliable, APIs.guru or Packagist?

On our scheduled checks, Packagist leads on measured uptime — APIs.guru at —% versus Packagist 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 APIs.guru and Packagist need an API key?

Neither needs a paid key — APIs.guru is callable with no signup, and Packagist is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call APIs.guru and Packagist from the browser?

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

Are APIs.guru and Packagist free for commercial use?

APIs.guru has unclear commercial terms, and Packagist 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.