> For the complete documentation index, see [llms.txt](https://docs.native.org/native-dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.native.org/native-dev/build-with-native/swap-aggregators/firmquote-swap-apis/miscellaneous/native-tokens-support.md).

# Native Tokens Support

Native Relay RFQ API and Router support swapping with native tokens for any trading pair involving a wrapped-native token address (WETH9). For example, if you see WETH->USDT in `/orderbook` , you may quote and swap ETH->USDT directly.

### Quote

For `/indicative-quote` and `/firm-quote` , use either:

* 0 address `0x0000000000000000000000000000000000000000`
* E address `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE`

to represent the native tokens.

Pricing will follow the wrapped-native token trading pair.

By default, native token trading pairs will NOT appear in /orderbook return. If you wish to include them, refer to the following section.

### Orderbook

If you wish to receive native token trading pairs in orderbook endpoint, please add one of the following parameters in the request:

* `showNative=0xE` for `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE`
* `showNawtive=0x0` for `0x0000000000000000000000000000000000000000`

Native token trading pairs will be appended to orderbook represented by the address you prefer.

### Onchain Execution

Please remember to submit payable value according to the `/firm-quote` return. The payable value is indicated under `txRequest.value`.

Example:

```bash
## Get Firm Quote for BNB->USDT
curl "https://v2.api.native.org/swap-api-v2/v1/firm-quote?from_address=0xbf381E1cBfdb0D02F3800010e490130D3dC73118&amount=1&token_in=0x0000000000000000000000000000000000000000&token_out=0x55d398326f99059ff775485246999027b3197955&version=3&src_chain=bsc&dst_chain=bsc" \
     -H "apiKey: $YOUR_KEY_HERE"
```

```json
{
  "success": true,
	// ...
  "txRequest": {
    "target": "0x0f9f2366C6157F2aCD3C2bFA45Cd9031c152D2Cf",
    "calldata": "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",
    "value": "1000000000000000000"
  },
  // ...
}
```

Tx: <https://www.tdly.co/shared/simulation/b25777d2-001f-4f88-a88f-ca5d0978fa9f>