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Ready to make cross-chain swap messages with ease? 🤝 ​

XCM Router can perform cross-chain transactions between Polkadot/Kusama Parachains and Relay chains as well. It works across 10 open-source Parachain DEXes.

These are:

  • Acala / 36 Pools available
  • Basilisk / 15 Pools available
  • BifrostKusama / 66 Pools available / Requires native token for swaps
  • BifrostPolkadot / 45 Pools available / Requires native token for swaps
  • HydraDX / 210 Pools available
  • Interlay / 10 Pools available / Requires native token for swaps
  • Karura / 136 Pools available
  • Kintsugi / 6 Pools available / Requires native token for swaps
  • AssetHubPolkadot / 32 Pools available / Requires specific native tokens for swaps
  • AssetHubKusama / 16 Pools available / Requires specific native tokens for swaps

Totalling to 572 pools available for cross-chain swap transactions.

NOTE: Some exchanges require native tokens to proceed with swaps.

Automatic exchange selection ​

If you wish to have an exchange chain selection based on the best price outcome, you can opt for the automatic exchange selection method. This method can be selected by not using .exchange() parameter in the call. The router will then automatically select the best exchange chain for you based on the best price outcome.

ts
await RouterBuilder
        .from('Polkadot')   //Origin Parachain/Relay chain - OPTIONAL PARAMETER
        .to('Astar')    //Destination Parachain/Relay chain - OPTIONAL PARAMETER
        .currencyFrom({symbol: 'DOT'})    // Currency to send - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount} 
        .currencyTo({symbol: 'ASTR'})    // Currency to receive - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount}
        .amount('1000000')  // Amount to send
        .slippagePct('1')   // Max slipppage percentage
        .senderAddress(selectedAccount.address)   //Injector address
        .recipientAddress(recipientAddress) //Recipient address
        .signer(injector.signer)    //Signer
        //.evmSenderAddress(evmInjector address)   //Optional parameters when origin node is EVM based (Required with evmSigner)
        //.evmSigner(EVM signer)                     //Optional parameters when origin node is EVM based (Required with evmInjectorAddress)

        .onStatusChange((status: TTxProgressInfo) => {  //This is how we subscribe to calls that need signing
          console.log(status.hashes);   //Transaction hashes
          console.log(status.status);   //Transaction statuses
          console.log(status.type);    //Transaction types
        })
        .buildAndSend()

AccountId32 and AccountKey20 addresses can be directly copied from PolkadotJS as our SDK has a handler to convert it into the desired hex string automatically.

Eg. use standard public key 141NGS2jjZca5Ss2Nysth2stJ6rimcnufCNHnh5ExSsftnAA Instead of 0x84fc49ce30071ea611731838cc7736113c1ec68fbc47119be8a0805066df9bAA

Whitelist exchange selection ​

If you wish to have specific exchanges selection and select the best one among them based on the best price outcome, you can opt for the whitelist automatic exchange selection method. This method can be selected by using .exchange() parameter in the call and feeding it with array of exchanges. The router will then automatically select the best exchange chain for you based on the best price outcome.

ts
await RouterBuilder
        .from('Polkadot')   //Origin Parachain/Relay chain - OPTIONAL PARAMETER
        .exchange(['HydrationDex','AcalaDex','AssetHubPolkadotDex'])    //Exchange Parachains
        .to('Astar')    //Destination Parachain/Relay chain - OPTIONAL PARAMETER
        .currencyFrom({symbol: 'DOT'})    // Currency to send - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount} 
        .currencyTo({symbol: 'ASTR'})    // Currency to receive - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount}
        .amount('1000000')  // Amount to send
        .slippagePct('1')   // Max slipppage percentage
        .senderAddress(selectedAccount.address)   //Injector address
        .recipientAddress(recipientAddress) //Recipient address
        .signer(injector.signer)    //Signer
        //.evmSenderAddress(evmInjector address)   //Optional parameters when origin node is EVM based (Required with evmSigner)
        //.evmSigner(EVM signer)                     //Optional parameters when origin node is EVM based (Required with evmInjectorAddress)

        .onStatusChange((status: TTxProgressInfo) => {  //This is how we subscribe to calls that need signing
          console.log(status.hashes);   //Transaction hashes
          console.log(status.status);   //Transaction statuses
          console.log(status.type);    //Transaction types
        })
        .buildAndSend()

AccountId32 and AccountKey20 addresses can be directly copied from PolkadotJS as our SDK has a handler to convert it into the desired hex string automatically.

Eg. use standard public key 141NGS2jjZca5Ss2Nysth2stJ6rimcnufCNHnh5ExSsftnAA Instead of 0x84fc49ce30071ea611731838cc7736113c1ec68fbc47119be8a0805066df9bAA

Manual exchange selection ​

If you wish to select your exchange chain manually you can do that by providing additional parameter .exchange() in the call. The router will then use the exchange chain of your choice.

ts
await RouterBuilder
        .from('Polkadot')   //Origin Parachain/Relay chain - OPTIONAL PARAMETER
        .exchange('HydrationDex')    //Exchange Parachain
        .to('Astar')    //Destination Parachain/Relay chain - OPTIONAL PARAMETER
        .currencyFrom({symbol: 'DOT'})    // Currency to send - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount} 
        .currencyTo({symbol: 'ASTR'})    // Currency to receive - {id: currencyID, amount: amount} | {symbol: currencySymbol, amount: amount} | {symbol: Native('currencySymbol'), amount: amount} | {symbol: Foreign('currencySymbol'), amount: amount} | {symbol: ForeignAbstract('currencySymbol'), amount: amount} | {multilocation: AssetMultilocationString, amount: amount | AssetMultilocationJson, amount: amount}
        .amount('1000000')  // Amount to send
        .slippagePct('1')   // Max slipppage percentage
        .senderAddress(selectedAccount.address)   //Injector address
        .recipientAddress(recipientAddress) //Recipient address
        .signer(injector.signer)    //Signer
        //.evmSenderAddress(evmInjector address)   //Optional parameters when origin node is EVM based (Required with evmSigner)
        //.evmSigner(EVM signer)                     //Optional parameters when origin node is EVM based (Required with evmInjectorAddress)

        .onStatusChange((status: TTxProgressInfo) => {  //This is how we subscribe to calls that need signing
          console.log(status.hashes);   //Transaction hashes
          console.log(status.status);   //Transaction statuses
          console.log(status.type);    //Transaction types
        })
        .buildAndSend()

AccountId32 and AccountKey20 addresses can be directly copied from PolkadotJS as our SDK has a handler to convert it into the desired hex string automatically.

Eg. use standard public key 141NGS2jjZca5Ss2Nysth2stJ6rimcnufCNHnh5ExSsftnAA Instead of 0x84fc49ce30071ea611731838cc7736113c1ec68fbc47119be8a0805066df9bAA

Get amount out for your currency pair ​

To retrieve exchange amount, that you receive for your desired asset pair you can use following function. This function returns 2 parameters. Name of best fitting DEX (Automatic selection - can be further used for manual selection) and Amount out

ts
const result = await RouterBuilder()
      .from('Astar') //Optional parameter
      .to('Acala') //Optional parameter
      .exchange('Hydration') //Optional parameter
      .currencyFrom({ symbol: 'ASTR' }) 
      .currencyTo({ symbol: 'DOT' })
      .amount(10000000000n)
      .getBestAmountOut();

console.log(result.amountOut)
console.log(result.exchange)

Helpful functions ​

Below, you can find helpful functions that are exported from XCM Router to help you enhance front end usability of XCM Router.

ts
import {getExchangeAssets} from @paraspell/xcm-router

//Returns all assets that DEX supports
const assets = getExchangeAssets('AssetHubPolkadotDex')

Ready to use in SpellRouter ​

DEXCan send to/receive fromSupported assetsNotes
Acala DEXPolkadot Relay, Astar, HydraDX, Interlay, Moonbeam, Parallel, AssetHubPolkadot, Unique networkACA, DOT, aSEED, USDCet, UNQ, IBTC, INTR, lcDOT, LDOTFees are paid by either ACA or DOT
Karura DEXKusama Relay, Altair, Basilisk, BifrostKusama, Calamari, Crab, Parallel Heiko, Kintsugi, Moonriver, Quartz, Crust Shadow, Shiden, AssetHubKusamaBNC, USDCet, RMRK, ARIS, AIR, QTZ, CSM, USDT, KAR, KBTC, KINT, KSM, aSEED, LKSM, PHA, tKSM, TAIFees are paid by either KAR or KSM
Hydration DEXPolkadot Relay, Acala, Interlay, AssetHubPolkadot, Zeitgeist, Astar, Centrifuge, BifrostPolkadot, MythosUSDT, MYTH, HDX, WETH, GLMR, IBTC, BNC, WBTC, vDOT, DAI, CFG, DOT, DAI, ZTG, WBTC, INTR, ASTR, LRNA, USDCChain automatically gives you native asset to pay for fees.
Basilisk DEXKusama Relay, Karura, AssetHubKusama, Tinkernet, RobonomicsBSX, USDT, aSEED, XRT, KSM, TNKRChain automatically gives you native asset to pay for fees.
Bifrost Kusama DEXKusama Relay, AssetHubKusama, Karura, Moonriver, KintsugiBNC, vBNC, vsKSM, vKSM, USDT, aSEED, KAR, ZLK, RMRK, KBTC, MOVR, vMOVRChain requires native BNC asset for fees.
Bifrost Polkadot DEXPolkadot Relay, AssetHubPolkadot, Moonbeam, Astar, InterlayBNC, vDOT, vsDOT, USDT, FIL, vFIL, ASTR, vASTR, GLMR, vGLMR, MANTA, vMANTAChain requires native BNC asset for fees.
Interlay DEXPolkadot Relay, Acala, Astar, Parallel, PolkadotAssetHub, HydraDX, BifrostPolkadotINTR, DOT, IBTC, USDT, VDOTChain requires native INTR asset for fees.
Kintsugi DEXKusama Relay, Karura, KusamaAssetHub, Parallel Heiko, BifrostKusamaKINT,KSM,KBTC,USDTChain requires native KINT asset for fees.
AssetHubPolkadotPolkadot Relay, Any Parachain it has HRMP channel withDOT, WETH.e, USDC, USDT, LAOS, MYTH, WBBTC.e, ASX, BILL, DEMO, TATE, PINK, MODE, MVPW, PIGS, DED, wstETH.e, TTT, KSM, tBTC.e, PEPE.e, SHIB.e, TON.e, NAT, NT2, DOTA, STINK, MTC, AJUN, GGI, GLMR, NINRequires specific native tokens for swaps
AssetHubKusamaKusama Relay, Any Parachain it has HRMP channel withKSM, DOT, USDC, USDT, BILLCOIN, WOOD, dUSD, TACP, TSM, MA42, USDT, DMO, JAMRequires specific native tokens for swaps