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Lichess vs Psychonauts API

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

APILichessHEALTHY74Psychonauts APIHEALTHY79
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d100%100%
P50 · ms4362979
P95 · ms40883699
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified; fan tribute, game © Double Fine
Free tierFree — limits not publishedFree, no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lichess vs Psychonauts API: common questions

Which is more reliable, Lichess or Psychonauts API?

Both are neck-and-neck — Lichess and Psychonauts API each measure 99.02% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Lichess or Psychonauts API?

Lichess has the lower median latency in our checks — Lichess responds in 436 ms versus Psychonauts API at 2979 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 Lichess and Psychonauts API need an API key?

Neither needs a paid key — Lichess 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 Lichess and Psychonauts API from the browser?

Only Lichess 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 Lichess and Psychonauts API free for commercial use?

Lichess 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.