Chess.com vs Psychonauts API

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

Uptime · 30d
Uptime · 90d99.44%98.9%
Uptime · 30d100%100%
P50 · ms1212855
P95 · ms6824207
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified; fan tribute, game © Double Fine
Free tierFree — no API keyFree, no API key required
Rate limitSerial requests expected; no fixed cap publishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Chess.com vs Psychonauts API: common questions

Which is more reliable, Chess.com or Psychonauts API?

On our scheduled checks, Chess.com leads on measured uptime — Chess.com at 99.44% versus Psychonauts API at 98.9% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Chess.com or Psychonauts API?

Chess.com has the lower median latency in our checks — Chess.com responds in 121 ms versus Psychonauts API at 2855 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Chess.com and Psychonauts API need an API key?

Neither needs a paid key — Chess.com 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 Chess.com and Psychonauts API from the browser?

Only Chess.com 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 Chess.com and Psychonauts API free for commercial use?

Chess.com 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.