Lichess vs SuperHeroes
Same instrument, two spec sheets — measured, not claimed.
Lichess vs SuperHeroes: common questions
Which is more reliable, Lichess or SuperHeroes?
Both are neck-and-neck — Lichess and SuperHeroes 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 SuperHeroes?
Lichess has the lower median latency in our checks — Lichess responds in 436 ms versus SuperHeroes at 1145 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 SuperHeroes need an API key?
Lichess needs no key, while SuperHeroes requires a free API key. If you want to start calling without signup, reach for Lichess first.
Can I call Lichess and SuperHeroes from the browser?
Yes — both Lichess and SuperHeroes send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Lichess and SuperHeroes free for commercial use?
Lichess has unclear commercial terms, and SuperHeroes 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.