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

# Integrate with PYUSD on Ethereum

> The steps to integrate PYUSD on your platform are similar to executing smart contract functions for other ERC20 tokens.

A minimally viable implementation of PYUSD must:

* Allow the recipient to create an Ethereum wallet address to receive PYUSD tokens.
* Monitor the PYUSD main network address for transfers to the recipient's wallet address.
* Appropriately credit the user's balance upon confirmed transfers.
* Allow the user to transfer PYUSD tokens back to Paxos and PayPal using the contract's `transfer` or `transferFrom` functions.

When using `transferFrom`, we recommend using the `increaseApproval` and `decreaseApproval` functions rather than `approve`.
This avoids a [well known attack vector](https://github.com/ethereum/ercs/blob/master/ERCS/erc-20.md) in the standard `approve` function.