---
sections:
  - title: Core
    contracts:
      - IERC20
      - ERC20
      - ERC20Detailed
  - title: Extensions
    contracts:
      - ERC20Mintable
      - ERC20Burnable
      - ERC20Pausable
      - ERC20Capped
  - title: Utilities
    contracts:
      - SafeERC20
      - TokenTimelock
---

This set of interfaces, contracts, and utilities are all related to the [ERC20 Token Standard](https://eips.ethereum.org/EIPS/eip-20).

*For an overview of ERC20 tokens and a walkthrough on how to create a token contract read our [ERC20 guide](../../tokens#erc20).*

There a few core contracts that implement the behavior specified in the EIP:
 - `IERC20`: the interface all ERC20 implementations should conform to
 - `ERC20`: the base implementation of the ERC20 interface
 - `ERC20Detailed`: includes the `name()`, `symbol()` and `decimals()` optional standard extension to the base interface

Additionally there are multiple custom extensions, including:
- designation of addresses that can create token supply (`ERC20Mintable`), with an optional maximum cap (`ERC20Capped`)
- destruction of own tokens (`ERC20Burnable`)
- designation of addresses that can pause token operations for all users (`ERC20Pausable`).

Finally, there are some utilities to interact with ERC20 contracts in various ways.
- `SafeERC20` is a wrapper around the interface that eliminates the need to handle boolean return values.
- `TokenTimelock` can hold tokens for a beneficiary until a specified time.

> This page is incomplete. We're working to improve it for the next release. Stay tuned!