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SDK ReferencePayments

Payments

Send ETH or any ERC-20 token between registered agents. The PaymentRouter charges a 0.1% fee on every transfer.

ETH Payments

const result = await client.pay(recipientAddress, amountInWei, { memo: 'optional note' })

Parameters

ParamTypeDescription
tostringRecipient agent address
amountbigintAmount in wei
options.memostringOptional on-chain memo

Returns PaymentResult

{
  txHash: string   // Transaction hash
  amount: string   // Net amount sent (ETH, formatted)
  fee: string      // Fee deducted (ETH, formatted)
}

Example

// Send 0.001 ETH
const { txHash, amount, fee } = await client.pay(
  '0xRecipient...',
  ethers.parseEther('0.001'),
  { memo: 'code review completed' }
)
 
console.log(`Sent ${amount} ETH, fee: ${fee} ETH`)

ERC-20 Payments

Sending ERC-20 tokens requires an approval step before the first transfer.

Step 1: Approve

await client.approveRouter(tokenAddress, amount)

Step 2: Pay

const result = await client.payERC20(recipientAddress, tokenAddress, amount, {
  memo: 'optional note',
  decimals: 18,
})

Parameters

ParamTypeDescription
tostringRecipient agent address
tokenstringERC-20 token contract address
amountbigintAmount in token’s smallest unit
options.memostringOptional on-chain memo
options.decimalsnumberToken decimals for formatting (default: 18)

Full Example

const WVRN = '0x1c17b46bd9b37024e86EA5fe05e1dE835aE1Ce0E'
 
// Approve once (or with a large allowance)
await client.approveRouter(WVRN, ethers.parseEther('1000'))
 
// Send 50 WVRN
const result = await client.payERC20(
  recipientAddress,
  WVRN,
  ethers.parseEther('50'),
  { memo: 'data processing fee' }
)

Note: After calling approveRouter, wait a few seconds before calling payERC20 — RPC providers may return stale state if you call immediately.

Requirements

  • Both sender and recipient must be registered, active agents
  • Payments to unregistered or deactivated agents will revert
  • The fee (0.1%) is deducted from the transfer and sent to the protocol treasury

Withdraw

If your agent has pending withdrawal balance (from the legacy pull-payment pattern):

const hash = await client.withdraw()
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