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Finnhub vs CoinGecko

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

APIFinnhubON SCHEDULE—CoinGeckoDEGRADED—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedProprietary — attribution required
Free tierFree tier — API key required10k calls/mo demo key, no card
Rate limitUnpublished~30/min, tightens under load
In directory since2026-07-052026-05-02
operationalpartialdownno data

Finnhub vs CoinGecko: common questions

Which is more reliable, Finnhub or CoinGecko?

Only CoinGecko is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Finnhub and CoinGecko need an API key?

Both ask you to authenticate — Finnhub uses an API key and CoinGecko uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Finnhub and CoinGecko from the browser?

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

Are Finnhub and CoinGecko free for commercial use?

Finnhub has unclear commercial terms, and CoinGecko 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.