CongressInvests vs ValueRay
Same instrument, two spec sheets — measured, not claimed.
CongressInvests vs ValueRay: common questions
Which is more reliable, CongressInvests or ValueRay?
Both are neck-and-neck — CongressInvests and ValueRay 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 ValueRay?
ValueRay has the lower median latency in our checks — CongressInvests responds in 615 ms versus ValueRay at 553 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 ValueRay need an API key?
ValueRay needs no key, while CongressInvests requires a free API key. If you want to start calling without signup, reach for ValueRay first.
Can I call CongressInvests and ValueRay from the browser?
Yes — both CongressInvests and ValueRay 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 ValueRay free for commercial use?
CongressInvests has unclear commercial terms, and ValueRay 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.