> For the complete documentation index, see [llms.txt](https://pay-apidocs.fizen.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pay-apidocs.fizen.io/reference/api-reference/utilities.md).

# Utilities

- [Fiat to cryptocurrency](https://pay-apidocs.fizen.io/reference/api-reference/utilities/fiat-to-cryptocurrency.md): API tool for Fiat - Cryptocurrency conversion.