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Coinpaprika vs Mempool

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

APICoinpaprikaDEAD0MempoolHEALTHY89
Uptime · 30d
Uptime · 90d1.0%86.3%
Uptime · 30d0.0%90.0%
P50 · ms291100
P95 · ms2912258
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (open-source project)
Free tierFree — limits not publishedFree public API; no key for basic usage
Rate limitRetry-After: 3600sEnforced — HTTP 429 on excess, repeated abuse may be banned; numeric limits unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Coinpaprika vs Mempool: common questions

Which is more reliable, Coinpaprika or Mempool?

On our scheduled checks, Mempool leads on measured uptime — Coinpaprika at 1.0% versus Mempool at 86.3% 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, Coinpaprika or Mempool?

Mempool has the lower median latency in our checks — Coinpaprika responds in 291 ms versus Mempool at 100 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 Coinpaprika and Mempool need an API key?

Neither needs a paid key — Coinpaprika is callable with no signup, and Mempool is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Coinpaprika and Mempool from the browser?

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

Are Coinpaprika and Mempool free for commercial use?

Coinpaprika has unclear commercial terms, and Mempool 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.