Raider vs TETR.IO
Same instrument, two spec sheets — measured, not claimed.
Raider vs TETR.IO: common questions
Which is more reliable, Raider or TETR.IO?
On our scheduled checks, TETR.IO leads on measured uptime — Raider at 98.9% versus TETR.IO 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, Raider or TETR.IO?
TETR.IO has the lower median latency in our checks — Raider responds in 140 ms versus TETR.IO at 139 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 Raider and TETR.IO need an API key?
Neither needs a paid key — Raider is callable with no signup, and TETR.IO is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Raider and TETR.IO from the browser?
Yes — both Raider and TETR.IO 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 Raider and TETR.IO free for commercial use?
Raider has unclear commercial terms, and TETR.IO 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.