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Both the Skip Router SDK (@skip-router/core) and Skip Go Core (@skip-go/core) are deprecated. Please migrate to Skip Go Client (@skip-go/client), our actively maintained client package.
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@skip-go/client v1.0.0

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Breaking changes

This section details the migration from previous versions to the latest @skip-go/client.

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No More SkipClient Class

The SkipClient class has been removed. Instead, import and use individual functions directly:
Example import
import {
  assets,
  assetsBetweenChains,
  assetsFromSource,
  recommendAssets,
  bridges,
  balances,
  chains,
  venues,
  ibcOriginAssets,
  route,
  messages,
  messagesDirect,
  submitTransaction,
  trackTransaction,
  transactionStatus,
  executeRoute,
  setClientOptions,
  setApiOptions,
} from '@skip-go/client';

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Initialization Changes

If not using executeRoute:
  • Call setApiOptions({ apiUrl, apiKey }) once at initialization.
  • Alternatively, pass apiUrl and apiKey as arguments to each individual API function call.
If using executeRoute:
  • Call setClientOptions() with the same options object previously passed to the SkipClient constructor.
  • Exception: getCosmosSigner, getEVMSigner, and getSVMSigner have been removed from setClientOptions. These signer functions are now passed directly to executeRoute when needed.
  • Renamed: getEVMSigner is now getEvmSigner, and getSVMSigner is now getSvmSigner.
Example migration
- const client = new SkipClient(options);
+ setClientOptions(options); // Only if using executeRoute

- client.chains();
+ chains(); // Assuming apiUrl/apiKey were set via setApiOptions or passed in

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Build Format Change

The library build format has changed from CommonJS (CJS) to ES Modules (ESM).This change enables better tree-shaking, leading to significantly smaller bundle sizes for applications that don’t use all the library’s features.
If you’re not using executeRoute, your final bundle size should decrease dramatically (e.g., from ~5MB to potentially ~7KB for a single API function usage), assuming tree-shaking is enabled in your bundler.

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Axios Removed

axios is no longer a dependency. All API calls now utilize the standard window.fetch API internally.

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CamelCase Update

All property names in API responses and configuration objects now strictly adhere to camelCase.Examples:
BeforeAfter
chainIDchainId
apiURLapiUrl
logoURIlogoUri
asset.isCW20asset.isCw20

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Named parameter enforcement for API functions

Some methods now require named parameters or an options object instead of positional arguments:

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recommendAssets

Old:
await client.recommendAssets(request);
// OR
await client.recommendAssets([request1, request2]);
New:
await recommendAssets({ requests: [request1, request2] });
Wrap the array in a { requests: [...] } object.

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ibcOriginAssets

Old:
await client.ibcOriginAssets(assets);
New:
await ibcOriginAssets({ assets: [asset1, asset2] });
Wrap the assets array in a { assets: [...] } object.

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getFeeInfoForChain

Parameters for getFeeInfoForChain should now be passed as an object.Old:
await client.getFeeInfoForChain(chainID);
New:
import { getFeeInfoForChain } from '@skip-go/client'; // Assuming setApiOptions was called

await getFeeInfoForChain({ chainId: chainID });
// Or, if not using setApiOptions globally for apiUrl/apiKey:
// await getFeeInfoForChain({ chainId: chainID, apiUrl: YOUR_API_URL, apiKey: YOUR_API_KEY });

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getRecommendedGasPrice

Parameters for getRecommendedGasPrice should now be passed as an object.Old:
await client.getRecommendedGasPrice(chainID);
New:
import { getRecommendedGasPrice } from '@skip-go/client'; // Assuming setApiOptions was called

await getRecommendedGasPrice({ chainId: chainID });
// Or, if not using setApiOptions globally for apiUrl/apiKey:
// await getRecommendedGasPrice({ chainId: chainID, apiUrl: YOUR_API_URL, apiKey: YOUR_API_KEY });

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Removed Internal Functions

The following functions that were previously exported are no longer available in v1.0.0. These were internal functions that were not intended for direct use by integrators, as they are used internally by executeRoute:
  • executeTxs
  • executeEvmMsg (merged with executeEvmTransaction)
  • executeCosmosMessage (merged with executeCosmosTransaction)
  • executeEVMTransaction
  • executeSVMTransaction
  • signCosmosMessageDirect
  • signCosmosMessageAmino
  • getRpcEndpointForChain
  • getRestEndpointForChain
  • validateGasBalances
  • validateEvmGasBalance
  • validateEvmTokenApproval
  • validateSvmGasBalance
  • validateUserAddresses
  • getMainnetAndTestnetChains
  • getMainnetAndTestnetAssets
  • getAccountNumberAndSequence
If your application was using any of these functions directly, consider using executeRoute instead, which handles all transaction execution internally. If you have a specific use case that requires access to any of these functions, please open a ticket on our Discord.
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@skip-router/core v4.0.0

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Breaking changes

  • Removed clientID param in SkipClient
  • Added apiKey param in SkipClient
  • Added requiredChainAddresses in SkipClient.route response
  • Added smartSwapOptions in SkipClient.routerequest
Type signature
smartSwapOptions: {
	splitRoutes: boolean
}
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@skip-router/core v3.0.0

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Breaking changes

  • Changed parameter type of userAddresses from a map of chainIDs to addresses to an array of UserAddress types
Type signature
export interface UserAddress {
  chainID: string;
  address: string;
}
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@skip-router/core v2.0.0

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Breaking changes

  • Removed SkipClient.executeMultiChainMessage method
  • Renamed SkipClient.getGasAmountForMessage method to SkipClient.getCosmosGasAmountForMessage
  • Renamed SkipClient.getFeeForMessage to SkipClient.getCosmosFeeForMe
  • Renamed MultiChainMsg type to CosmosMsg
  • Renamed and changed parameters of SkipClient.executeMultiChainMsgs to SkipClient.executeTxs
Diff
const client = new SkipClient({
  apiURL: SKIP_API_URL,
// ... rest of your configs
});
- client.executeMultiChainMsgs({
+ client.executeTxs({
	...options
-	msgs: types.Msg[]
+	txs: types.Tx[]
})
  • Param of SkipClient.executeCosmosMessage changed from message:MultiChainMsg to messages: CosmosMsg[]
Diff
const client = new SkipClient({
  apiURL: SKIP_API_URL,
// ... rest of your configs
});
client.executeCosmosMessage({
	...options
-	message: MultiChainMsg
+	messages: CosmosMsg[]
})
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