Card Issuance › Guides
Card products determine the BIN, currency, form factor, and maximum limits. Available products depend on merchant authorization.
Card Products and BINs
GET /v1/cards/products
The response lists card products enabled for your merchant. Do not hardcode the list: adding a BIN requires an administrative configuration row, not a release.
What a Product Defines
| Field | Determines |
|---|---|
| BIN | Which issuing bank issues the card |
| Currency | The accounting currency of card funds |
| Form factor | Virtual / physical |
max_* | Maximum limits that member-defined limits cannot exceed |
Limits Have No New-Card Default
A new card's member-defined limits are always 0, meaning not set. The effective limits therefore fall back to the product's max_* values.
⚠ **Do not copy
max_*into the card at issuance.** That would fix the product maximum into each card,preventing existing cards from following later product-limit changes.