CARD DESK FOR DEVELOPERS
Build with real CardDesk sales.
A separate API for apps and businesses, using anonymised CardDesk marketplace transactions.
Developer setup is open · paid credits coming laterAPI keys and usage tracking are ready to prepare. Credit purchases and external paid access are not open yet.
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API v1
GET /api/v1/comps · Authorization: Bearer YOUR_CARD_DESK_KEY
Idempotency-Key: lookup-unique-id ?id=ex5-13&finish=Holo&condition=Near%20mint
- Exact catalogue id and finish required; condition, grader and grade must match.
- One credit for a non-empty successful lookup. Empty results and errors cost zero credits.
- Retry with the same Idempotency-Key and query to avoid a second debit.
- Prices are in GBP pence, exclude postage, and include sale method and date.
- No external-provider sale records, personal details or private account identifiers.
- Zero or one sale has no average; two or three carry a limited-data indicator.
