Skip to main content
This guide shows you how to create a settlement orchestration that accepts tokens across multiple chains and settles to USDC on Base.
Make sure you’ve completed the Installation & Setup before continuing.

​
Define the Settlement

A settlement orchestration specifies:
  • Settlement token and chain: What the recipient receives and where
  • Accepted tokens: Which tokens on which chains can be used as payment
  • Recipient address: Who receives the final settlement
main.go
const (
	// Chain IDs
	ethereumChainID = 1
	baseChainID     = 8453

	// Token addresses
	usdcEth  = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
	usdcBase = "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
)

// Settlement amount: 1 USDC (6 decimals)
amount := new(big.Int)
amount.SetString("1000000", 10)

// Build settlement request
buildRequest := &client.BuildSettlementOrchestrationRequest{
	Params: &client.SettlementParams{
		AcceptedTokens: map[client.ChainID][]common.Address{
			ethereumChainID: {common.HexToAddress(usdcEth)},
			baseChainID:     {common.HexToAddress(usdcBase)},
		},
		SettlementChainId: baseChainID,
		SettlementToken:   common.HexToAddress(usdcBase),
		SettlementAmount:  hexutil.Big(*amount),
		RecipientAddress:  common.HexToAddress("<RECIPIENT_ADDRESS>"),
	},
}

// Build, sign, and submit
buildResponse, _ := otimClient.BuildSettlementOrchestration(ctx, buildRequest)
newRequest, _ := otimClient.NewOrchestrationFromBuild(ctx, buildResponse)
otimClient.NewOrchestration(ctx, newRequest)

fmt.Println("Request ID:", buildResponse.RequestID)
fmt.Println("Payment Address:", buildResponse.EphemeralWalletAddress.Hex())

​
Understanding the Response

When created successfully, you’ll receive:
  • Request ID: Unique identifier for tracking this orchestration
  • Payment Address: The ephemeral wallet address to share with whoever is sending payment
The sender transfers their tokens to the payment address, and Otim handles the cross-chain settlement to deliver the specified amount to your recipient.

​
Run It

Command Line
go run main.go

​
Next Steps