Congressional Stock Brain vs Exchangerate.host

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

Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms385398
P95 · ms17673637
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Congressional Stock Brain vs Exchangerate.host: common questions

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

On our scheduled checks, Congressional Stock Brain leads on measured uptime — Congressional Stock Brain at 100% versus Exchangerate.host at 99.02% 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, Congressional Stock Brain or Exchangerate.host?

Congressional Stock Brain has the lower median latency in our checks — Congressional Stock Brain responds in 385 ms versus Exchangerate.host at 398 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 Congressional Stock Brain and Exchangerate.host need an API key?

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

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

Yes — both Congressional Stock Brain and Exchangerate.host 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 Congressional Stock Brain and Exchangerate.host free for commercial use?

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