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restful-api.dev vs Todoist

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

APIrestful-api.devNEW—TodoistNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedRetry-After: 2s
In directory since2026-07-052026-07-05
operationalpartialdownno data

restful-api.dev vs Todoist: common questions

Which is more reliable, restful-api.dev or Todoist?

On our scheduled checks, Todoist leads on measured uptime — restful-api.dev at —% versus Todoist at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do restful-api.dev and Todoist need an API key?

restful-api.dev needs no key, while Todoist requires a free API key. If you want to start calling without signup, reach for restful-api.dev first.

Can I call restful-api.dev and Todoist from the browser?

Only restful-api.dev is browser-friendly — it returns CORS headers over HTTPS. Todoist needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are restful-api.dev and Todoist free for commercial use?

restful-api.dev has unclear commercial terms, and Todoist 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.