# Look up card details from a BIN.

Look up card details from a BIN.

1. Look up the card's details from its BIN. The primary path uses the `cardBin` payload (type `cardBin` + `bin`). To check surcharge support, add `amount` and `currency` (both optional and omitted for a plain lookup). Alternatively, replace the `card` payload with a full `card`, `secureToken`, or `digitalWallet` object — the operation accepts any of these discriminated variants.
 [binLookup](/api/bin-lookup)

## Workflow diagram

```mermaid
flowchart TD
  step0["1. BIN lookup · API"]
```