shipapis
StarSubmit an APISubmit API

Congressional Stock Brain vs Exchangerate.dev

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

APICongressional Stock BrainNEW—Exchangerate.devNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished12 req/window · 11 remaining · resets 1783515720
In directory since2026-07-052026-07-05
operationalpartialdownno data

Congressional Stock Brain vs Exchangerate.dev: common questions

Which is more reliable, Congressional Stock Brain or Exchangerate.dev?

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

Neither needs a paid key — Congressional Stock Brain is callable with no signup, and Exchangerate.dev is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Congressional Stock Brain and Exchangerate.dev from the browser?

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

Are Congressional Stock Brain and Exchangerate.dev free for commercial use?

Congressional Stock Brain has unclear commercial terms, and Exchangerate.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.