Kroki vs restful-api.dev
Same instrument, two spec sheets — measured, not claimed.
Kroki vs restful-api.dev: common questions
Which is more reliable, Kroki or restful-api.dev?
On our scheduled checks, Kroki leads on measured uptime — Kroki at 100% versus restful-api.dev at 16.7% 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, Kroki or restful-api.dev?
restful-api.dev has the lower median latency in our checks — Kroki responds in 633 ms versus restful-api.dev at 240 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 Kroki and restful-api.dev need an API key?
Neither needs a paid key — Kroki is callable with no signup, and restful-api.dev is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Kroki and restful-api.dev from the browser?
Yes — both Kroki and restful-api.dev 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 Kroki and restful-api.dev free for commercial use?
Kroki has unclear commercial terms, and restful-api.dev 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.