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Open5e vs Psychonauts API

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

APIOpen5eNEW—Psychonauts APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseSRD content under OGL 1.0a; API/site MIT-licensedUnverified; fan tribute, game © Double Fine
Free tierFree, no API key requiredFree, no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open5e vs Psychonauts API: common questions

Which is more reliable, Open5e or Psychonauts API?

On our scheduled checks, Psychonauts API leads on measured uptime — Open5e at —% versus Psychonauts 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 Open5e and Psychonauts API need an API key?

Neither needs a paid key — Open5e is callable with no signup, and Psychonauts API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open5e and Psychonauts API from the browser?

Only Open5e is browser-friendly — it returns CORS headers over HTTPS. Psychonauts API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open5e and Psychonauts API free for commercial use?

Open5e has unclear commercial terms, and Psychonauts 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.