BriefTape vs CongressInvests
Same instrument, two spec sheets — measured, not claimed.
BriefTape vs CongressInvests: common questions
Which is more reliable, BriefTape or CongressInvests?
On our scheduled checks, CongressInvests leads on measured uptime — BriefTape at 99.02% versus CongressInvests at 100% 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, BriefTape or CongressInvests?
CongressInvests has the lower median latency in our checks — BriefTape responds in 1021 ms versus CongressInvests at 615 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 BriefTape and CongressInvests need an API key?
Both ask you to authenticate — BriefTape uses an API key and CongressInvests 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 BriefTape and CongressInvests from the browser?
Yes — both BriefTape and CongressInvests 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 BriefTape and CongressInvests free for commercial use?
BriefTape has unclear commercial terms, and CongressInvests 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.