> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hyperline.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Currency amounts

> Understand how Hyperline represents monetary values in the API: currency, integer amounts in minor units, and rounding rules across endpoints.

<Note>
  Learn about [currency settings](/docs/account/settings#currencies) in Hyperline.
</Note>

The Hyperline API always represents currencies using their **three-letter ISO 4217 code** (see a complete list [here](https://en.wikipedia.org/wiki/ISO_4217#Active_codes_\(List_One\))). It accepts and returns integer amounts in the **currency's smallest unit**.

For **European currencies**, this means that Hyperline represents amounts in **cents**. To convert an amount with decimals into its Hyperline format, multiply it by `100`. For example, Hyperline represents an amount of €`34.17` (Euro, a two-decimal currency) as `3417`.

Hyperline also supports **zero-decimal currencies** and **three-decimal currencies**. In this case, you need to apply the right multiplier (or none). For example, Hyperline represents an amount of `F CFA 12065` (West African CFA franc, a zero-decimal currency) as `12065`.


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