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Documentation Index

Fetch the complete documentation index at: https://docs.blend.money/llms.txt

Use this file to discover all available pages before exploring further.

The Blend SDK and API must be called from your backend server. Never expose your API key in frontend code. Embedding the SDK in a browser or mobile client leaks your credentials and compromises your integration.

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client.withdraw.getDestinations()

Returns supported withdrawal destination chains. Each destination includes its chain ID, display name, and the canonical loan token address on that chain. 
const destinations = await client.withdraw.getDestinations();
// destinations[0].chainId, destinations[0].name, destinations[0].loanTokenAddress
Use getDestinations() to populate the withdrawal destination picker before requesting calldata.

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client.withdraw.getCalldata(params)

Returns server-built withdrawal action plans. The server resolves the Safe and user context from the accountId, selects source chains, and returns ActionPlan objects for the integrator to execute. 
import { TransactionHandler } from "@blend-money/sdk";

const result = await client.withdraw.getCalldata({
  accountId: account.accountId,
  destinationChainId: 8453,
  amount: "1000000000000000000",
  // isMaxWithdraw: true,
});

for (const actionPlan of result.actionPlans) {
  await TransactionHandler.submitActionPlan(actionPlan);
}
Each ActionPlan in result.actionPlans represents one source chain. Action plans for different chains can be executed concurrently. TransactionHandler.submitActionPlan() handles step ordering and transaction submission. Important behavior:
  • amount is an integer string in underlying token units
  • isMaxWithdraw: true redeems all shares across chains
  • a 409 response means a rebalance flow plan is already active
  • for max withdraws, bridge steps may be omitted because the exact post-settlement amount is not known up front
  • forceDeallocate steps appear when funds need to be pulled from a position that does not support standard withdrawal

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Next steps

Last modified on April 30, 2026