shipapis
StarSubmit an APISubmit API

Mempool vs PumpFunData

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

APIMempoolNEW—PumpFunDataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (open-source project)Unverified
Free tierFree public API; no key for basic usageFree tier — API key required
Rate limitEnforced — HTTP 429 on excess, repeated abuse may be banned; numeric limits unpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Mempool vs PumpFunData: common questions

Which is more reliable, Mempool or PumpFunData?

On our scheduled checks, PumpFunData leads on measured uptime — Mempool at —% versus PumpFunData at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Mempool and PumpFunData need an API key?

Mempool needs no key, while PumpFunData requires a free API key. If you want to start calling without signup, reach for Mempool first.

Can I call Mempool and PumpFunData from the browser?

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

Are Mempool and PumpFunData free for commercial use?

Mempool has unclear commercial terms, and PumpFunData 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.