> ## Documentation Index
> Fetch the complete documentation index at: https://docs.evav.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Buy

> Buy an item from the marketplace

### Buy

Allows you to buy an item from the marketplace. Address is optional if you already have an address associated with your account.

#### Fee

The fee is a percentage of the total price of the item. The fee is set by the person implementing the buy. The maximum fee is 10%.

<CodeGroup>
  ```typescript example theme={null}
  import { mkt } from './config'

  mkt.buy(
    {
      id: '<ITEM_MARKETPLACE_ID>',
      amount: 1n,
      mailingAddress: {
        name: "John Doe",
        phone: "+12024564545", // US or Canada phone number
        street1: "123 Main St",
        city: "Anytown",
        state: "CA",
        country: "USA",
        zip: "12345"
      },
      email: "email@email.com"
      fee: 300, // 3%
      feeRecipient: "0x123...",
    }
  )
  ```

  ```typescript interface.ts theme={null}
  import type { Address } from 'viem'

  buy(input: BuyInput): Promise<void>

  export interface BuyInput {
    id: string
    amount: bigint
    mailingAddress: MailingAddress | undefined  // optional, account may have address
    email: string | undefined  // optional, account may have email
    fee: number
    feeRecipient: Address
  }
  interface MailingAddress {
    name: string
    phone: string
    street1: string
    street2: string
    city: string
    state: string
    country: string
    zip: string
  }
  ```

  ```typescript config.ts (dynamic) theme={null}
  import { Marketplace } from '@evav/marketplace'
  import { useDynamicContext, getAuthToken } from '@dynamic-labs/sdk-react-core'

  const { primaryWallet } = useDynamicContext()
  const walletClient = await primaryWallet?.connector?.getWalletClient()
  const publicClient = await primaryWallet?.connector?.getPublicClient()
  const [account] = await walletConnector.getConnectedAccounts()

  // viem is required for the evav sdk
  export const mkt = new Marketplace({
    walletClient,
    publicClient,
    account: account as Address,
    // Optional. If not provided, SIWE will be used instead, and you will be asked to sign a message with your wallet
    accessToken: getAuthToken(),
  })
  ```

  ```typescript config.ts (privy) theme={null}
  import { Marketplace } from '@evav/marketplace'
  import { useWallets, usePrivy } from 'privy'
  import { createWalletClient, createPublicClient, custom } from 'viem'
  import { base } from 'viem/chains'

  const { wallets } = useWallets();
  const { user } = usePrivy();

  const wallet = wallets[0]; // Replace this with your desired wallet
  const provider = await wallet.getEthereumProvider()

  const walletClient = createWalletClient({
    chain: base,
    transport: custom(provider),
  })

  const publicClient = createPublicClient({
    chain: base,
    transport: custom(provider),
  })

  // viem is required for the evav sdk
  export const mkt = new Marketplace({
    walletClient,
    publicClient,
    account: user.linked_accounts[0].address // Replace with your desired account
  })
  ```
</CodeGroup>