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Scryfall vs SuperHeroes

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

APIScryfallNEW—SuperHeroesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseCard data free to use; MTG content © Wizards of the Coast (see docs)Unverified
Free tierFree, no API key requiredFree tier — key may be required
Rate limit~10 requests/second; docs ask for 50-100 ms between requestsUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Scryfall vs SuperHeroes: common questions

Which is more reliable, Scryfall or SuperHeroes?

On our scheduled checks, SuperHeroes leads on measured uptime — Scryfall at —% versus SuperHeroes 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 Scryfall and SuperHeroes need an API key?

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

Can I call Scryfall and SuperHeroes from the browser?

Yes — both Scryfall and SuperHeroes 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 Scryfall and SuperHeroes free for commercial use?

Scryfall has unclear commercial terms, and SuperHeroes 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.