Smart Contracts

Review Wanted Ask the community to informally review your code. NOT A SUBSTITUTE FOR A PROFESSIONAL AUDIT. Showcase Showcase your projects to the community. Developer Wanted Post requests for freelance work. OpenZeppelin does not endorse participants. Always conduct due diligence. Guides and Tutorials Guides, tutorials, how-tos and any other educational content.

Topic	Replies	Views	Activity
About the Smart Contracts category Smart Contracts	0	1302	July 29, 2021
Complicated register() payable method with loops throw error: contract call run out of gas Smart Contracts	11	94	February 1, 2023
What is the best way to include Metadata to a smart contract/Token Smart Contracts erc721	1	14	January 31, 2023
Taxable Contract - Add an Optional Tx Tax to Your Token Showcase erc20 , safemoon	3	1248	January 31, 2023
HttpProviderError when deploying contract from Hardhat Smart Contracts proxies , upgrades	14	3691	January 31, 2023
Can someone help me check this code, i want to make marketing wallet to take 3% while lp 2% Smart Contracts	4	31	January 31, 2023
Multisend ERC20 tokens and Ether airdrop smart contract Showcase erc20	15	5438	January 21, 2023
Timelock function Smart Contracts	5	20	January 30, 2023
Cant deploy my contract Smart Contracts	13	73	January 29, 2023
How would i make a contract that only let mint the actual nft by owning other nfts Smart Contracts	1	24	January 29, 2023
Contract for employees to claim 1x per month their salary Smart Contracts erc20 , bep20	1	29	January 29, 2023
Pancakeswap message: I cannot sell tokens in this contract Smart Contracts bep20	10	541	January 28, 2023
Web3.js not connecting infure Smart Contracts	1	34	January 28, 2023
Guys pls help, how do i tax 5% to dev wallet Smart Contracts	3	40	January 28, 2023
How to generate a QR with the EIP-681 scheme and that when scanning with metamask mobile points me to a specific contract function by passing parameters Developer Wanted	1	27	January 28, 2023
ERC165Checker; is it required to check support for ERC-165 AND any given interface, or just the latter? Smart Contracts	8	391	January 27, 2023
Nice to open zeppelin Showcase	0	23	January 27, 2023
How to create a proposal to send native token Developer Wanted erc20 , solidity	2	61	January 27, 2023
How to show the id of the nft in an ERC721 contract after the name when sending custom metadata function tokenURI Smart Contracts erc721 , solidity	20	116	January 26, 2023
Cant verify my contract Smart Contracts erc20 , solidity , etherscan-verify	6	44	January 26, 2023
Is it possible to use multicall with meta transaction? Smart Contracts	0	27	January 26, 2023
Is there any standard to let msg.sender reveal delayed NFT? Smart Contracts	3	60	January 25, 2023
To add more functionality to the NFT smart contract such as Time limit Smart Contracts erc721	1	307	January 25, 2023
Is there a project that uses two different token burning methods at the same time? Smart Contracts token , solidity	0	28	January 25, 2023
ERC721 Development: Should you write metadata for tokens before or after minting? Smart Contracts erc721 , design	12	4038	November 1, 2021
Indexed keyword use case Smart Contracts	7	63	January 25, 2023
Are wallet signatures still necessary when using zk rollups? Smart Contracts proxies	0	24	January 24, 2023
Why is the inherited function signature not found? "upgradeTo not found or not visible" Smart Contracts proxies , solidity	2	42	January 24, 2023
Allowance is never approved (ERC20 - USDC) Smart Contracts	7	53	January 23, 2023
Deploy Contract Using a Relayer Guides and Tutorials defender	3	487	January 22, 2023