CoinGecko vs Congressional Stock Brain

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseProprietary — attribution requiredUnverified
Free tier10k calls/mo demo key, no cardFree — limits not published
Rate limit~30/min, tightens under loadUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

CoinGecko vs Congressional Stock Brain: common questions

Which is more reliable, CoinGecko or Congressional Stock Brain?

On our scheduled checks, Congressional Stock Brain leads on measured uptime — CoinGecko at —% versus Congressional Stock Brain 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 CoinGecko and Congressional Stock Brain need an API key?

Congressional Stock Brain needs no key, while CoinGecko requires a free API key. If you want to start calling without signup, reach for Congressional Stock Brain first.

Can I call CoinGecko and Congressional Stock Brain from the browser?

Only Congressional Stock Brain 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 CoinGecko and Congressional Stock Brain free for commercial use?

CoinGecko has unclear commercial terms, and Congressional Stock Brain 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.