CongressInvests vs Congressional Stock Brain
Same instrument, two spec sheets — measured, not claimed.
CongressInvests vs Congressional Stock Brain: common questions
Which is more reliable, CongressInvests or Congressional Stock Brain?
Both are neck-and-neck — CongressInvests and Congressional Stock Brain each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, CongressInvests or Congressional Stock Brain?
Congressional Stock Brain has the lower median latency in our checks — CongressInvests responds in 615 ms versus Congressional Stock Brain at 385 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 CongressInvests and Congressional Stock Brain need an API key?
Congressional Stock Brain needs no key, while CongressInvests requires a free API key. If you want to start calling without signup, reach for Congressional Stock Brain first.
Can I call CongressInvests and Congressional Stock Brain from the browser?
Yes — both CongressInvests and Congressional Stock Brain 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 Congressional Stock Brain free for commercial use?
CongressInvests 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.