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Psychonauts API vs xkcd

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

APIPsychonauts APINEW—xkcdNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearno
Data licenseUnverified; fan tribute, game © Double FineCC BY-NC 2.5
Free tierFree, no API key requiredFree, no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Psychonauts API vs xkcd: common questions

Which is more reliable, Psychonauts API or xkcd?

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

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

Can I call Psychonauts API and xkcd from the browser?

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

Are Psychonauts API and xkcd free for commercial use?

Psychonauts API has unclear commercial terms, and xkcd is personal/non-commercial only. 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.