Solana Agent Kit provides comprehensive integration with deBridge’s DLN protocol for cross-chain token transfers. The integration supports creating, executing, and monitoring bridge transactions across multiple blockchain networks.

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Key Features

  • Cross-chain token transfers
  • Transaction status monitoring
  • Support for multiple blockchain networks
  • Quote generation for bridge transactions
  • Token information retrieval
  • LangChain tool integration

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Basic Usage

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Creating a Bridge Order

const orderInput = {
  srcChainId: "1", // Ethereum
  srcChainTokenIn: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", // USDC on Ethereum
  srcChainTokenInAmount: "1000000", // 1 USDC (6 decimals)
  dstChainId: "7565164", // Solana
  dstChainTokenOut: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v", // USDC on Solana
  dstChainTokenOutRecipient: "Abws588GagNKeMViBPE2e1WjQ2jViDyw81ZRq8oMSx75",
  senderAddress: "Abws588GagNKeMViBPE2e1WjQ2jViDyw81ZRq8oMSx75",
  slippage: 0.5 // 0.5% slippage tolerance
};

const order = await agent.methods.createDebridgeOrder(orderInput);

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Executing a Bridge Order

const signature = await agent.methods.executeDebridgeBridgeOrder(order.tx.data);

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Checking Bridge Status

const status = await agent.methods.checkDebridgeTransactionStatus(signature);

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Getting Supported Chains

const chains = await agent.methods.getDebridgeSupportedChains();

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LangChain Integration

Solana Agent Kit provides LangChain tools for automated bridge operations:

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Create Bridge Order Tool

import { CreateDebridgeOrderTool } from 'solana-agent-kit';

const createOrderTool = new CreateDebridgeOrderTool(agent);

// Tool input format (JSON string):
const input = JSON.stringify({
  srcChainId: "1",
  srcChainTokenIn: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  srcChainTokenInAmount: "1000000",
  dstChainId: "7565164",
  dstChainTokenOut: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  dstChainTokenOutRecipient: "Abws588GagNKeMViBPE2e1WjQ2jViDyw81ZRq8oMSx75",
  senderAddress: "Abws588GagNKeMViBPE2e1WjQ2jViDyw81ZRq8oMSx75"
});

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Execute Bridge Order Tool

import { ExecuteDebridgeOrderTool } from 'solana-agent-kit';

const executeOrderTool = new ExecuteDebridgeOrderTool(agent);

// Tool input format (JSON string):
const input = JSON.stringify({
  transactionData: "0x23b872dd..." // Hex-encoded transaction data from create_bridge_order
});

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Check Bridge Status Tool

import { CheckDebridgeStatusTool } from 'solana-agent-kit';

const checkStatusTool = new CheckDebridgeStatusTool(agent);

// Tool input format (JSON string):
const input = JSON.stringify({
  txHashOrOrderId: "3Dq8kH5oeN..." // Transaction hash or order ID
});

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Get Supported Chains Tool

import { GetDebridgeSupportedChainsTool } from 'solana-agent-kit';

const getSupportedChainsTool = new GetDebridgeSupportedChainsTool(agent);
// No input required

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Example Prompts

For LangChain AI tools, here are example prompts:

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Creating Orders

"Bridge 1000 USDC from Ethereum to Solana"
"Transfer 0.5 ETH from Ethereum to BSC"
"Send 100 USDT from Solana to Polygon"

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Checking Status

"Check the status of my bridge transaction 0x1234..."
"What's the status of my recent bridge order?"

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Chain Information

"Which chains are supported for bridging?"
"Show me the available networks for cross-chain transfers"

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Important Parameters

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Bridge Order Parameters

Required Parameters:
  • srcChainId: Source chain ID (e.g., “1” for Ethereum)
  • srcChainTokenIn: Token address on source chain
  • srcChainTokenInAmount: Amount to bridge (in smallest units)
  • dstChainId: Destination chain ID
  • dstChainTokenOut: Token address on destination chain
  • dstChainTokenOutRecipient: Recipient address
  • senderAddress: Sender’s address
Optional Parameters:
  • slippage: Slippage tolerance in percentage
  • referralCode: Referral code for the transaction
  • affiliateFeePercent: Affiliate fee percentage
  • prependOperatingExpenses: Include operating expenses in calculation

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Error Handling

try {
  const order = await agent.methods.createDebridgeOrder(orderInput);
} catch (error) {
  if (error.message.includes("insufficient funds")) {
    // Handle insufficient balance
  } else if (error.message.includes("slippage")) {
    // Handle price impact too high
  }
}

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Technical Details

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Chain IDs

const CHAIN_IDS = {
  ETHEREUM: "1",
  BSC: "56",
  POLYGON: "137",
  SOLANA: "7565164"
};

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Transaction Status

type TransactionStatus = {
  orderId: string;
  status: "pending" | "completed" | "failed";
  orderLink: string; // Link to deBridge explorer
};

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API Endpoints

const DEBRIDGE_API = "https://api.debridge.finance/v1";

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Best Practices

  1. Slippage Protection
    • Always set a reasonable slippage tolerance
    • Default is 0.5% if not specified
    • Consider market volatility when setting slippage
  2. Transaction Monitoring
    • Always monitor transaction status after creation
    • Use order links for detailed tracking
    • Keep track of order IDs for future reference
  3. Error Recovery
    • Handle network-specific errors appropriately
    • Implement retry logic for failed transactions
    • Store transaction details for manual resolution if needed
  4. Token Addresses
    • Use checksummed addresses for EVM chains
    • Use base58 encoded addresses for Solana
    • Verify token decimals before setting amounts