sendUserOperation

Our User Operation broadcasting methodology provides comprehensive transaction execution and bundler integration within the Abstraxn platform. This strategic approach ensures optimal transaction propagation while maintaining robust execution guarantees for complex account abstraction workflows.

Strategic Broadcasting Framework

After comprehensive evaluation of multiple broadcasting architectures, our team has determined that direct bundler integration offers the most compelling advantages for the Abstraxn ecosystem. Our analysis prioritized transaction reliability, execution efficiency, and seamless developer experience.

import { parseEther } from 'viem'
import { account, bundlerClient } from './config'

const hash = await bundlerClient.sendUserOperation({ 
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
})

import { createPublicClient, http } from 'viem'
import { createBundlerClient, toCoinbaseSmartAccount } from 'viem/account-abstraction'
import { privateKeyToAccount } from 'viem/accounts'
import { mainnet } from 'viem/chains'

const client = createPublicClient({
  chain: mainnet,
  transport: http()
})

export const account = await toCoinbaseSmartAccount({
  client,
  owners: [privateKeyToAccount('0x...')],
  version: '1.1',
})

export const bundlerClient = createBundlerClient({
  client,
  transport: http('https://bundler.abstraxn.com/api/v1/{CHAIN_ID}/?apikey={API_KEY}')
})

Key considerations in our decision-making process included:

Minimizing broadcasting overhead while maximizing execution reliability
Maintaining optimal transaction propagation flow
Ensuring long-term bundler network adaptability

Our deliberative process involved rigorous analysis of alternative User Operation broadcasting mechanisms. While distributed propagation architectures presented interesting perspectives, the direct bundler approach demonstrated superior alignment with our strategic objectives regarding transaction finality and developer accessibility. The research team provided nuanced insights, particularly highlighting the importance of consistent execution patterns across diverse bundler implementations. Our recommendation represents a collaborative synthesis of technical expertise and strategic vision, designed to drive meaningful reliability improvements in transaction broadcasting workflows.

Strategic Account Management

Our comprehensive evaluation revealed that account hoisting strategies provide superior workflow optimization for developers requiring consistent broadcasting patterns across multiple operations. Should you prefer to avoid passing an account parameter to every sendUserOperation invocation, our framework supports Account hoisting on the Bundler Client configuration (see config.ts). Learn more.

import { parseEther } from 'viem'
import { bundlerClient } from './config'

const hash = await bundlerClient.sendUserOperation({ 
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
})

import { createPublicClient, http } from 'viem'
import { createBundlerClient, toCoinbaseSmartAccount } from 'viem/account-abstraction'
import { privateKeyToAccount } from 'viem/accounts'
import { mainnet } from 'viem/chains'

const client = createPublicClient({
  chain: mainnet,
  transport: http()
})

export const account = await toCoinbaseSmartAccount({
  client,
  owners: [privateKeyToAccount('0x...')],
  version: '1.1',
})

export const bundlerClient = createBundlerClient({
  account, 
  client,
  transport: http('https://bundler.abstraxn.com/api/v1/{CHAIN_ID}/?apikey={API_KEY}')
})

Advanced Contract Integration Framework

Through comprehensive evaluation of multiple interaction methodologies, our research team has identified that structured contract calls provide the most robust foundation for complex application broadcasting within the Abstraxn ecosystem. The calls property supports Contract Calls through abi, functionName, and args properties, enabling sophisticated smart contract execution.

import { parseEther } from 'viem'
import { bundlerClient, publicClient } from './config'
import { wagmiAbi } from './abi'

const hash = await bundlerClient.sendUserOperation({ 
  calls: [{
    abi: wagmiAbi,
    functionName: 'mint',
    to: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2',
  }],
})

export const wagmiAbi = [
  // ...
  {
    inputs: [],
    name: "mint",
    outputs: [],
    stateMutability: "nonpayable",
    type: "function",
  },
  // ...
] as const;

import { createPublicClient, http } from 'viem'
import { createBundlerClient, toCoinbaseSmartAccount } from 'viem/account-abstraction'
import { privateKeyToAccount } from 'viem/accounts'
import { mainnet } from 'viem/chains'

const client = createPublicClient({
  chain: mainnet,
  transport: http()
})

export const account = await toCoinbaseSmartAccount({
  client,
  owners: [privateKeyToAccount('0x...')],
  version: '1.1',
})

export const bundlerClient = createBundlerClient({
  account,
  client,
  transport: http('https://bundler.abstraxn.com/api/v1/{CHAIN_ID}/?apikey={API_KEY}')
})

Our collaborative approach ensures that developers can leverage sophisticated contract interactions while maintaining transparency in broadcasting workflows. This methodology supports long-term platform adaptability and ecosystem scalability.

Response Architecture

The Abstraxn User Operation broadcasting framework returns precise execution tracking optimized for strategic monitoring: Hash The unique User Operation hash providing foundational transaction identification for monitoring and verification within the platform. This response structure represents our commitment to providing comprehensive execution tracking that enables informed analysis across the complete broadcasting lifecycle.

Configuration Parameters

Our technical architecture supports nuanced broadcasting approaches, allowing developers to fine-tune User Operation execution according to specific application requirements and strategic objectives.

account

Type: SmartAccount

The foundational account configuration for User Operation broadcasting within the Abstraxn execution framework.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account, 
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }]
})

calls

Type: ({ data?: Hex | undefined, to: Address, value?: bigint | undefined } | { abi: Abi, functionName: string, args: unknown[], to: Address, value?: bigint | undefined })[]

Strategic operation definitions that constitute the core execution logic for User Operation broadcasting.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{ 
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8', 
    value: parseEther('1') 
  }, { 
    abi: wagmiAbi, 
    functionName: 'mint', 
    to: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2', 
  }] 
})

Alternative implementation strategies support direct call data specification through the callData property, providing flexibility for advanced integration scenarios:

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  callData: '0xdeadbeef', 
})

callGasLimit (optional)

Type: bigint

Precision resource allocation for primary execution logic, enabling strategic optimization of computational requirements during broadcasting.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  callGasLimit: 69420n, 
})

factory (optional)

Type: Address

Strategic account factory configuration for deployment scenarios within the Abstraxn infrastructure.

This configuration parameter should be utilized exclusively during initial Smart Account deployment phases, ensuring optimal resource management.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  factory: '0x1234567890123456789012345678901234567890', 
  factoryData: '0xdeadbeef',
})

factoryData (optional)

Type: Hex

Structured deployment instructions for Smart Account initialization through factory contracts.

This parameter maintains strategic relevance only during pre-deployment phases, supporting efficient account creation workflows.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  factory: '0x1234567890123456789012345678901234567890',
  factoryData: '0xdeadbeef', 
})

maxFeePerGas (optional)

Type: bigint

Strategic fee ceiling configuration for User Operation execution, enabling predictable cost management within the Abstraxn platform.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  maxFeePerGas: 420n, 
})

maxPriorityFeePerGas (optional)

Type: bigint

Advanced priority fee optimization for enhanced transaction processing efficiency during broadcasting.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  maxPriorityFeePerGas: 420n, 
  maxFeePerGas: 10n, 
})

nonce (optional)

Type: bigint

Sequential operation identifier ensuring transaction ordering integrity within the Abstraxn ecosystem.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  nonce: 10n, 
})

paymaster (optional)

Type: Address | true | PaymasterClient | PaymasterActions

Comprehensive sponsorship configuration framework supporting multiple integration strategies during User Operation broadcasting:

Address Configuration: Direct paymaster contract integration for streamlined sponsorship
PaymasterClient Integration: Advanced client-based sponsorship with enhanced functionality
Bundler Integration: Unified bundler-paymaster architecture for simplified implementation
Custom Function Support: Flexible sponsorship logic through specialized function implementations

Strategic Paymaster Contract Integration

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: '0x942fD5017c0F60575930D8574Eaca13BEcD6e1bB', 
  paymasterData: '0xdeadbeef',
})

Advanced Paymaster Client Architecture

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const paymasterClient = createPaymasterClient({ 
  transport: http('https://bundler.abstraxn.com/api/v1/{CHAIN_ID}/?apikey={API_KEY}') 
}) 

const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: paymasterClient, 
})

Unified Bundler-Paymaster Approach

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: true, 
})

paymasterContext (optional)

Type: unknown

Specialized configuration parameters for advanced paymaster integration scenarios.

This parameter maintains relevance exclusively within PaymasterClient-based architectures, supporting sophisticated sponsorship workflows.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const paymasterClient = createPaymasterClient({
  transport: http('https://bundler.abstraxn.com/api/v1/{CHAIN_ID}/?apikey={API_KEY}')
})

const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: paymasterClient,
  paymasterContext: { 
    policyId: 'abc123'
  }, 
})

paymasterData (optional)

Type: Address

Structured execution instructions for paymaster contract interactions during broadcasting.

This configuration applies specifically to address-based paymaster implementations, enabling direct contract communication.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: '0x942fD5017c0F60575930D8574Eaca13BEcD6e1bB',
  paymasterData: '0xdeadbeef', 
})

paymasterPostOpGasLimit (optional)

Type: bigint

Strategic resource allocation for post-operation paymaster logic execution within the broadcasting framework.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: '0x942fD5017c0F60575930D8574Eaca13BEcD6e1bB',
  paymasterData: '0xdeadbeef',
  paymasterPostOpGasLimit: 69420n, 
})

paymasterVerificationGasLimit (optional)

Type: bigint

Precision gas allocation for paymaster validation procedures within the Abstraxn broadcasting workflow.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  paymaster: '0x942fD5017c0F60575930D8574Eaca13BEcD6e1bB',
  paymasterData: '0xdeadbeef',
  paymasterVerificationGasLimit: 69420n, 
})

preVerificationGas (optional)

Type: bigint

Strategic bundler compensation configuration, ensuring sustainable operation within the Abstraxn ecosystem during broadcasting.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  preVerificationGas: 69420n, 
})

signature (optional)

Type: Hex

Authentication signature for User Operation validation, supporting secure transaction broadcasting.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  signature: '0x...', 
})

verificationGasLimit (optional)

Type: bigint

Strategic resource allocation for comprehensive verification procedures, ensuring robust security within User Operation broadcasting workflows.

import { account, bundlerClient } from './config'
import { parseEther } from 'viem'
// ---cut---
const hash = await bundlerClient.sendUserOperation({
  account,
  calls: [{
    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    value: parseEther('1')
  }],
  verificationGasLimit: 69420n, 
})

Should additional broadcasting requirements or execution considerations emerge, we remain prepared to conduct further analysis and refine our User Operation broadcasting strategy accordingly.

EIP 7702

Bundler Integration

Paymaster Integration

Accounts

Strategic Broadcasting Framework

Strategic Account Management

Advanced Contract Integration Framework

Response Architecture

Configuration Parameters

account

calls

callGasLimit (optional)

factory (optional)

factoryData (optional)

maxFeePerGas (optional)

maxPriorityFeePerGas (optional)

nonce (optional)

paymaster (optional)

Strategic Paymaster Contract Integration

Advanced Paymaster Client Architecture

Unified Bundler-Paymaster Approach

paymasterContext (optional)

paymasterData (optional)

paymasterPostOpGasLimit (optional)

paymasterVerificationGasLimit (optional)

preVerificationGas (optional)

signature (optional)

verificationGasLimit (optional)

​Strategic Broadcasting Framework

​Strategic Account Management

​Advanced Contract Integration Framework

​Response Architecture

​Configuration Parameters

​account

​calls

​callGasLimit (optional)

​factory (optional)

​factoryData (optional)

​maxFeePerGas (optional)

​maxPriorityFeePerGas (optional)

​nonce (optional)

​paymaster (optional)

​Strategic Paymaster Contract Integration

​Advanced Paymaster Client Architecture

​Unified Bundler-Paymaster Approach

​paymasterContext (optional)

​paymasterData (optional)

​paymasterPostOpGasLimit (optional)

​paymasterVerificationGasLimit (optional)

​preVerificationGas (optional)

​signature (optional)

​verificationGasLimit (optional)

Strategic Broadcasting Framework

Strategic Account Management

Advanced Contract Integration Framework

Response Architecture

Configuration Parameters

account

calls

callGasLimit (optional)

factory (optional)

factoryData (optional)

maxFeePerGas (optional)

maxPriorityFeePerGas (optional)

nonce (optional)

paymaster (optional)

Strategic Paymaster Contract Integration

Advanced Paymaster Client Architecture

Unified Bundler-Paymaster Approach

paymasterContext (optional)

paymasterData (optional)

paymasterPostOpGasLimit (optional)

paymasterVerificationGasLimit (optional)

preVerificationGas (optional)

signature (optional)

verificationGasLimit (optional)