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CongressInvests vs MEXC Global API

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

APICongressInvestsHEALTHY92MEXC Global APIHEALTHY100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms61587
P95 · ms1338878
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CongressInvests vs MEXC Global API: common questions

Which is more reliable, CongressInvests or MEXC Global API?

Both are neck-and-neck — CongressInvests and MEXC Global API 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 MEXC Global API?

MEXC Global API has the lower median latency in our checks — CongressInvests responds in 615 ms versus MEXC Global API at 87 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 MEXC Global API need an API key?

Both ask you to authenticate — CongressInvests uses an API key and MEXC Global 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 MEXC Global API from the browser?

Only CongressInvests is browser-friendly — it returns CORS headers over HTTPS. MEXC Global API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CongressInvests and MEXC Global API free for commercial use?

CongressInvests has unclear commercial terms, and MEXC Global 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.