# Currencies

To keep the list of coins in your systems up to date use the [`GET /api/coins`](https://reference.cryptopay.me/#tag/Coins/operation/coins.list) endpoint.

The endpoint provides the following information:

* Array of available coins and all supported networks
* Currency - currency ticker 
* Name - name of currency, network or destination tag
* Precision - number of decimal places supported by coin
* Destination tag - the presence of an additional `destination_tag` field for the coin. If `destination_tag` is not `null`, then there is an additional field for the coin and it must be shown to the user when the user is paying, as well as give an opportunity to the user to specify it, on par with the wallet address, when withdrawing funds. Additional parameter `required` specifies the obligation to send `destination_tag` when requesting a coin withdrawal:
  * `required: true` - you cannot create a withdrawal without specifying `destination_tag`. If the user doesn't specify it, add `dt=0` to the request.
  * `required: false` - you can create a withdrawal without `destination_tag`. If the user didn't specify it - don't add `dt` to the request.

{% hint style="info" %}
Destination tag is similar to a reference number for bank transfers. It helps to identify transactions when a single address is used by multiple users.
{% endhint %}

* Logo url - link to logo of the coin
* Invoices, channels, coin withdrawals - availability for use in invoices, channels and coin withdrawals. Switches to false during maintenance on our side.