Chess.com vs XIVAPI
Same instrument, two spec sheets — measured, not claimed.
Chess.com vs XIVAPI: common questions
Which is more reliable, Chess.com or XIVAPI?
On our scheduled checks, XIVAPI leads on measured uptime — Chess.com at 99.02% versus XIVAPI at 100% 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 XIVAPI?
Chess.com has the lower median latency in our checks — Chess.com responds in 168 ms versus XIVAPI at 578 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 XIVAPI need an API key?
Neither needs a paid key — Chess.com is callable with no signup, and XIVAPI is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Chess.com and XIVAPI from the browser?
Yes — both Chess.com and XIVAPI 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 Chess.com and XIVAPI free for commercial use?
Chess.com has unclear commercial terms, and XIVAPI 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.