One paymaster.Every policy.

Sponsor gas for your users and agents, charge it in USDC or any ERC-20, and enforce spending rules at signing time. A managed ERC-4337 paymaster so your team never reconciles gas bills by hand or pushes policy changes through contract redeploys.

02Features

What it does

Sponsored gas.

Cover gas for your users and agents, or split sponsorship by transaction class.

ERC-20 settlement.

Charge gas in USDC or any token, no native gas required.

Policy at signing time.

Per-agent budgets, daily caps, allowlists, and method rules enforced before the op lands.

Auditable spend.

Every sponsored op is logged against the policy that approved it.

Dashboard-driven rules.

Update controls without redeploying contracts.

Multi-chain.

Ethereum, Base, Arbitrum, and Polygon from one paymaster.

Wired into 50+ pre-integrated services and counting.

03How to use

Get started

Wire the paymaster into your stack through the unified SDK. Full integration steps live in the docs.

import { http } from 'viem'
import { createBundlerClient, createPaymasterClient } from 'viem/account-abstraction'
import { sepolia } from 'viem/chains'

// Create the paymaster client with minimal configuration
export const paymasterClient = createPaymasterClient({
  transport: http(
    'https://paymaster.abstraxn.com/api/v2/11155111/?apikey=YOUR_API_KEY',
  ) // Paymaster v2 endpoint
})

// Integrate the paymaster with a bundler client for complete functionality
export const bundlerClient = createBundlerClient({
  chain: sepolia, // Specify the blockchain network for proper operation
  paymaster: paymasterClient, // Delegate sponsorship decisions to the paymaster client
  transport: http('https://bundler.abstraxn.com/v1/sepolia') // Separate endpoint for bundler operations
})

Read the docs