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CongressInvests vs RBA Exchange Rates API

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

APICongressInvestsNEW—RBA Exchange Rates APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CongressInvests vs RBA Exchange Rates API: common questions

Which is more reliable, CongressInvests or RBA Exchange Rates API?

On our scheduled checks, RBA Exchange Rates API leads on measured uptime — CongressInvests at —% versus RBA Exchange Rates API 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 CongressInvests and RBA Exchange Rates API need an API key?

Both ask you to authenticate — CongressInvests uses an API key and RBA Exchange Rates API 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 CongressInvests and RBA Exchange Rates API from the browser?

Yes — both CongressInvests and RBA Exchange Rates API 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 CongressInvests and RBA Exchange Rates API free for commercial use?

CongressInvests has unclear commercial terms, and RBA Exchange Rates API 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.