# CardFundingSource

A model the API reference uses in a request or a response. The operation pages link every field typed as this model here.

Normalized card funding-source axis derived from BIN data, keyable by compliance rules.
Distinct from `BinCardType` (which carries only Credit/Debit/Charge): this
enum adds `Unknown` as a safe default and `Prepaid`, which is a
category overlay on the debit/credit rail rather than a card-type value.
The convenience-fee evaluator uses this to permit a fee on Credit only.

## Values

| Value | Description |
| --- | --- |
| `Unknown` | Funding source could not be determined from BIN data. |
| `Credit` | Credit card. |
| `Debit` | Debit card. |
| `Prepaid` | Prepaid card (overlay on the debit/credit rail: wins over the rail value). |
| `Charge` | Charge card. |

## See also

- [All documentation](https://devportal.demo.winkpg.io/llms.txt): the machine-readable index of every public page on this site.