eth_sendTransaction

Sends a single transaction through the 1auth intent system. The user reviews the transaction details and approves with their passkey. Gas is automatically sponsored, so users don't need ETH for fees. Returns an intent ID that you can poll with wallet_getCallsStatus to track execution.

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Parameters

Position	Type	Description
0	`object`	The transaction object

Transaction Object

Field	Type	Description
`to`	`string`	The recipient address or contract
`data`	`string`	The calldata (optional, defaults to `"0x"`)
`value`	`string \| number`	The value in wei (optional, defaults to `"0"`)
`chainId`	`number`	Target chain ID (optional, uses current chain)
`tokenRequests`	`array`	Tokens needed for this transaction (optional, see below)

Token Requests

For ERC20 transfers or contract calls that consume tokens, specify tokenRequests to enable cross-chain funding:

Field	Type	Description
`token`	`string`	Token contract address on target chain
`amount`	`bigint`	Amount in base units (e.g., 6 decimals for USDC)

Returns

string - The intent ID (can be used with wallet_getCallsStatus).

Example

import { encodeFunctionData, parseUnits } from 'viem';
 
// Simple ETH transfer (no tokenRequests needed)
const intentId = await provider.request({
  method: 'eth_sendTransaction',
  params: [{
    to: '0x...',
    value: '1000000000000000000', // 1 ETH in wei
  }],
});
 
// ERC20 transfer with tokenRequests
const USDC = '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913';
const amount = parseUnits('100', 6); // 100 USDC
 
const transferData = encodeFunctionData({
  abi: erc20Abi,
  functionName: 'transfer',
  args: [recipientAddress, amount],
});
 
const intentId = await provider.request({
  method: 'eth_sendTransaction',
  params: [{
    to: USDC,
    data: transferData,
    tokenRequests: [{ token: USDC, amount }],
  }],
});

Notes

Returns an intent ID, not a transaction hash
Use wallet_getCallsStatus to track the transaction status
The transaction is executed via the 1auth intent system
Gas is automatically sponsored - no ETH needed for fees