# Pimlico Client

A Pimlico Bundler Client is an interface to official ERC-4337 & ERC-7677 JSON-RPC API methods that include sending user operations, estimation user operation gas limits, getting user operation receipts, supporting paymaster rpc methods and more as well as the Pimlico-specific bundler methods [pimlico\_getUserOperationStatus](/references/bundler/endpoints/pimlico_getUserOperationStatus) and [pimlico\_getUserOperationGasPrice](/references/bundler/endpoints/pimlico_getUserOperationGasPrice).

To create a Pimlico Client, you can use the `createPimlicoClient` method.

## Import

```ts twoslash
import { createPimlicoClient } from 'permissionless/clients/pimlico'
```

## Usage

Initialize th client with your desired Chain (e.g. mainnet) and Transport (e.g. http) from viem. Pimlico client will by default have bundler actions, paymaster actions and custom pimlico actions.

```ts twoslash
import { http } from 'viem'
import { sepolia } from 'viem/chains'
import { createPimlicoClient } from 'permissionless/clients/pimlico'
import { entryPoint07Address } from "viem/account-abstraction"

const pimlicoClient = createPimlicoClient({ 
  transport: http("https://api.pimlico.io/v2/sepolia/rpc?apikey=YOUR_API_KEY_HERE"),
  entryPoint: {
    address: entryPoint07Address,
    version: "0.7",
  }
})
```

Then you can consume Pimlico Bundler Actions:

```ts
const userOperationGasPrice = await pimlicoClient.getUserOperationGasPrice()
```

Alternatively, you can create a barebon client and extend pimlico specific actions:

```ts twoslash
import { http, createClient } from 'viem'
import { sepolia } from 'viem/chains'
import { pimlicoActions } from "permissionless/actions/pimlico";
import { bundlerActions, paymasterActions, entryPoint07Address } from "viem/account-abstraction";

const client = createClient({
    chain: sepolia,
    transport: http("https://api.pimlico.io/v2/sepolia/rpc?apikey=YOUR_API_KEY_HERE"),
})
    .extend(bundlerActions)
    .extend(paymasterActions)
    .extend(
        pimlicoActions({
            entryPoint: {
                address: entryPoint07Address,
                version: "0.7",
            }
        })
    )
```