# Code and Formats
source: https://developer.mastercard.com/eligibility-api/documentation/code-and-formats/index.md

* [Generic Code and Formats](https://developer.mastercard.com/eligibility-api/documentation/code-and-formats/generic-code-and-formats/index.md)
* [Eligibility Error Code](https://developer.mastercard.com/eligibility-api/documentation/code-and-formats/eligibility-error-codes/index.md)
* [Widget Error Code](https://developer.mastercard.com/eligibility-api/documentation/code-and-formats/widget-error-codes/index.md)