import "@thirdweb-dev/contracts/extension/Staking721.sol";

The Staking721 smart contract extension implements NFT staking mechanism. With this extension you can setup a staking contract for NFT holders of your ERC721 Collection. Users can stake their NFTs and earn ERC20 tokens as rewards.

View on GitHub


This is an example smart contract demonstrating how to inherit from this extension and override the functions to add (optional) custom functionality.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@thirdweb-dev/contracts/extension/Staking721.sol";
import "@thirdweb-dev/contracts/eip/interface/IERC20.sol";
contract MyContract is Staking721 {
// ERC20 Reward Token address. See {_mintRewards}.
address public rewardToken;
* We store the contract deployer's address only for the purposes of the example
* in the code comment below.
* Doing this is not necessary to use the `Staking721` extension.
address public deployer;
uint256 _timeUnit,
uint256 _rewardsPerUnitTime,
address _stakingToken,
address _rewardToken
) Staking721(_stakingToken) {
_setStakingCondition(_timeUnit, _rewardsPerUnitTime);
rewardToken = _rewardToken;
deployer = msg.sender;
* @dev Mint/Transfer ERC20 rewards to the staker. Must override.
* @param _staker Address for sending rewards to.
* @param _rewards Amount of tokens to be given out as reward.
function _mintRewards(address _staker, uint256 _rewards) internal override {
IERC20(rewardToken).transfer(_staker, _rewards);
// Returns whether staking restrictions can be set in given execution context.
function _canSetStakeConditions() internal view override returns (bool) {
return msg.sender == deployer;

Base Contracts Implementing This Extension

Full API Reference