Before creating a swap, it's possible to programmatically retrieve available sources, destinations and assets for swaps. The endpoint is public and does not require any authorization.
GET https://api.layerswap.io/api/available_networks
version
String
Possible values “sandbox” | any. If a sandbox value is provided, only the Testnet networks will be returned. For any other values - only the Mainnet networks will be returned.
{
"data": [
{
"name": "ARBITRUM_MAINNET",
"display_name": "Arbitrum One",
"chain_id": "42161",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDC",
"display_name": "USDC.e",
"refuel": true,
"contract": "0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
}
]
},
{
"name": "ARBITRUMNOVA_MAINNET",
"display_name": "Arbitrum Nova",
"chain_id": "42170",
"native_asset": "ETH",
"currencies": [
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
}
]
},
{
"name": "STARKNET_MAINNET",
"display_name": "StarkNet",
"chain_id": "0x534e5f4d41494e",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDC",
"display_name": "USDC",
"refuel": false,
"contract": "0x053c91253bc9682c04929ca02ed00b3e423f6710d2ee7e0d5ebb06f3ecf368a8",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": "0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"decimals": 18
}
]
},
{
"name": "OPTIMISM_MAINNET",
"display_name": "Optimism",
"chain_id": "10",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDT",
"display_name": "USDT",
"refuel": true,
"contract": "0x94b008aA00579c1307B0EF2c499aD98a8ce58e58",
"decimals": 6
},
{
"asset": "USDC",
"display_name": "USDC",
"refuel": true,
"contract": "0x7F5c764cBc14f9669B88837ca1490cCa17c31607",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
},
{
"asset": "OP",
"display_name": "OP",
"refuel": true,
"contract": "0x4200000000000000000000000000000000000042",
"decimals": 18
}
]
},
],
"error": null
}curl -X 'GET' \
'https://api.layerswap.io/api/available_networks'{
"data": [
{
"name": "ARBITRUM_MAINNET",
"display_name": "Arbitrum One",
"chain_id": "42161",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDC",
"display_name": "USDC.e",
"refuel": true,
"contract": "0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
}
]
},
{
"name": "ARBITRUMNOVA_MAINNET",
"display_name": "Arbitrum Nova",
"chain_id": "42170",
"native_asset": "ETH",
"currencies": [
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
}
]
},
{
"name": "STARKNET_MAINNET",
"display_name": "StarkNet",
"chain_id": "0x534e5f4d41494e",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDC",
"display_name": "USDC",
"refuel": false,
"contract": "0x053c91253bc9682c04929ca02ed00b3e423f6710d2ee7e0d5ebb06f3ecf368a8",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": "0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7",
"decimals": 18
}
]
},
{
"name": "OPTIMISM_MAINNET",
"display_name": "Optimism",
"chain_id": "10",
"native_asset": "ETH",
"currencies": [
{
"asset": "USDT",
"display_name": "USDT",
"refuel": true,
"contract": "0x94b008aA00579c1307B0EF2c499aD98a8ce58e58",
"decimals": 6
},
{
"asset": "USDC",
"display_name": "USDC",
"refuel": true,
"contract": "0x7F5c764cBc14f9669B88837ca1490cCa17c31607",
"decimals": 6
},
{
"asset": "ETH",
"display_name": "ETH",
"refuel": false,
"contract": null,
"decimals": 18
},
{
"asset": "OP",
"display_name": "OP",
"refuel": true,
"contract": "0x4200000000000000000000000000000000000042",
"decimals": 18
}
]
},
],
"error": null
}