Choosing an infra provider

Check out these guides for integrating with a specific provider:

Read on to learn how to integrate with a custom provider.

Interop with Bundlers

For the most part, bundlers are perfectly interoperable between different providers. You simply specify the bundler RPC when you construct a Kernel client:

import { createKernelAccountClient } from "@zerodev/sdk";
import { http } from "viem";

const kernelClient = createKernelAccountClient({
  // other options...

  bundlerTransport: http("BUNDLER_RPC"),
});

Interop with Paymasters

If the Paymaster supports ERC-7677 paymaster methods, you can simply pass the Paymaster RPC URL to createZeroDevPaymasterClient:

import { createKernelAccountClient, createZeroDevPaymasterClient } from "@zerodev/sdk"

const paymasterClient = createZeroDevPaymasterClient({
  chain,
  transport: http('PAYMASTER_RPC'),
})

const kernelClient = createKernelAccountClient({
  // other options...

  paymaster: paymasterClient
})

To integrate with a paymaster which doesn't support ERC-7677, you need to implement the getPaymasterData function:

const kernelClient = createKernelAccountClient({
  // other options...

  paymaster: {
    getPaymasterData(userOperation) {
      // return `paymasterAndData` for `EntryPoint 0.6` or `paymaster` and `paymasterData` for `EntryPoint 0.7`
    }
  }
})

Choosing an infra provider

Interop with Bundlers

Interop with Paymasters

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