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

# Assets & networks

> The 11 crypto assets buyers can pay with, and how network selection works.

Qint's catalog covers **11 assets**. You choose which ones your business accepts (dashboard → onboarding / settings); the buyer chooses among them at checkout. Whatever they pick, you settle in CHF, EUR or USD.

## The catalog

| Asset          | Symbol | Networks (default first)                   |
| -------------- | ------ | ------------------------------------------ |
| Tether         | `USDT` | Tron (TRC-20) · Ethereum (ERC-20) · Solana |
| USD Coin       | `USDC` | Ethereum (ERC-20) · Tron (TRC-20) · Solana |
| Ether          | `ETH`  | Ethereum                                   |
| Bitcoin        | `BTC`  | Bitcoin                                    |
| Solana         | `SOL`  | Solana                                     |
| Tron           | `TRX`  | Tron                                       |
| Dogecoin       | `DOGE` | Dogecoin                                   |
| Cardano        | `ADA`  | Cardano                                    |
| XRP            | `XRP`  | XRP Ledger                                 |
| Stellar Lumens | `XLM`  | Stellar                                    |
| Sui            | `SUI`  | Sui                                        |

USDT and USDC are **multi-network**: the checkout shows one row per network variant, and the **buyer picks the network**. Acceptance is symbol-level on your side — accepting USDT means accepting it on all of its networks.

<Note>
  New merchants accept the default set — **USDT, USDC, ETH and BTC** — until
  they opt into more. Additional assets are enabled per symbol in the
  dashboard.
</Note>

## How the checkout quotes

1. The checkout shows your accepted assets as a grid with **indicative** crypto amounts based on live rates. The rate is network-independent, so a stablecoin's variants share one indicative amount.
2. When the buyer selects an asset (and network), the amount is quoted for real and **locked**, and a deposit address is issued. The buyer must send **exactly** the quoted crypto amount to that address.
3. The lock lives inside the payment's **15-minute window** — after `expiresAt`, an unpaid intent is `expired` and the address must not be paid.

If the buyer changes their mind and picks a *different* asset or network, the previous quote and address are cancelled and fresh ones are issued. Re-picking the same asset and network is a no-op.

<Warning>
  Amounts are exact-per-quote. A buyer who sends less than the locked amount
  triggers the [underpayment flow](/guides/underpayments); crypto amounts in
  API and webhook payloads are 8-decimal-place **strings** (e.g.
  `"49.90000000"`) to avoid floating-point drift.
</Warning>

## Network identifiers

Where the API exposes a network (`chain` fields on checkout payloads), it uses these identifiers:

`ETHEREUM`, `BITCOIN`, `SOLANA`, `TRON`, `DOGECOIN`, `CARDANO`, `XRPL`, `STELLAR`, `SUI`

## Related

<CardGroup cols={2}>
  <Card title="API payments" icon="code" href="/accept-payments/api-payments">
    Create intents and read back `assetSymbol` and `cryptoAmount`.
  </Card>

  <Card title="Underpayments" icon="scale-unbalanced" href="/guides/underpayments">
    Tolerance, review queue, and partial payments.
  </Card>
</CardGroup>