Đã Đóng

ERC1155 -> ERC721 burn swap

Hello, we are an existing NFT project that was minted as OpenSea1155, we need to do a burn swap to 721 to reach our new goals.

The NFT holder is to pay the gas. We have the UI ready for our website and a sample smart contract that another project used to do same swap.

In conclusion we need a contract that sends the existing 1155 to a burn wallet and sending the new 721 version back to the holder.

There are 3006 NFTs in the collection on Ethereum

Kĩ năng: Solidity, Smart Contracts, Non-fungible Tokens (NFT), Ethereum

Về Bên Thuê:
( 0 nhận xét ) Cartago, Costa Rica

ID dự án: #32655625

29 freelancer chào giá trung bình$1277 cho công việc này

(71 Nhận xét)
7.5
(2 Nhận xét)
5.5
(10 Nhận xét)
5.7
milosgojko

Senior Blockchain Developer!!! I have many experiences on bsc, ethereum, polygon, fantom and etc. Solidity and its related frontend frameworks are my main skills. • Cryptocurrencies. NFT marketplace, dApps/DeFi/DEX, Thêm

$1200 USD trong 7 ngày
(14 Nhận xét)
5.7
masterblockchain

Hi, NFT developer Here Market place [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] https://corsacnfttest.x Thêm

$1500 USD trong 7 ngày
(7 Nhận xét)
5.6
ivanovatale

I have been working in the Crypto Currency domain for the last 4 years and have sound knowledge of coin, Ethereum, Polkadot blockchain along with Defi, and NFT knowledge. I am working on 3 parallel Defi and NFT project Thêm

$750 USD trong 5 ngày
(8 Nhận xét)
5.1
yarickbez

Hello This is Yaroslav from Ukraine. I have rich experience in nft. I can help you enough. Pls contact me to discuss in details. Best Regards.

$1125 USD trong 7 ngày
(4 Nhận xét)
4.4
miruashviligio16

Hello. I am a Ethereum/Smart Contract Senior developer and so interesting in your project. I have worked successfully in Cryptocurrency, Token generation projects for 3+ years and have rich experiences. Also, I built Thêm

$1125 USD trong 7 ngày
(3 Nhận xét)
4.2
NikitaSemenov00

Hi As a Software Developer with 7 years of experience in Blockchain, Cryptocurrency, Blockchain Game,NFT game, wallet, I apply with enthusiasm for this position. I am currently a Software Engineer: Blockchain at 7PH Thêm

$1125 USD trong 7 ngày
(2 Nhận xét)
3.8
dejanprogrammer

Hello, nice to meet you, I am an experienced blockchain developer familiar with NFT and smart contracts. Also, I have good knowledge and experience in several mechanisms such as airdrop, batch minting and payment split Thêm

$1125 USD trong 3 ngày
(2 Nhận xét)
3.9
vasyldruzhynin9

Hello Thanks for your kind care. I've just checked your requirements carefully. As a Full Stack developer who has 6+ years of experiences in Programming, I have much experiences in Blockchain Technology and full stack Thêm

$750 USD trong 7 ngày
(2 Nhận xét)
4.0
betaogbeta

Hi Dear. quality no problem. I just need good communication with you. I can help you and confident about your project. I'm very familiar with creating ethereum blockchain, smart contract, Cryptocoin, wallet, whitepape Thêm

$1125 USD trong 7 ngày
(3 Nhận xét)
3.5
polonska

Hello How are you? I am a professional blockchain fullstack, awesome modern UX/UI designer, having 5 years of experience My top skill is Dapp building - NFT collection launching, marketplaces are my powerful skill In Thêm

$1500 USD trong 7 ngày
(1 Nhận xét)
3.0
dominicnzioka197

HELLO DEAR EMPLOYER, First receive warm greetings, and hoping you are good, i welcome you to the home of Amazing services and quality. EXPERT IN NAMED SKILLS, OVER 18 YEARS OF EXPERIENCE, After KEENLY reading your des Thêm

$1500 USD trong 7 ngày
(4 Nhận xét)
4.1
ernestpapyan

Hello Thanks for your job posting >>ERC-ERC-burn-swap<< ***[login to view URL]*** I have more than 3+ years of experience in Blockchain Development, writing smart contracts in Solidity for Ethereum, TRON a Thêm

$1125 USD trong 7 ngày
(2 Nhận xét)
2.7
mykytazhum

Hello I just read job description and understood clearly what you want.. I have developed erc20/erc721/erc1155 contracts, and I have worked on other popular networks including BSC, Matic, Avax, Fantom as well as Ethere Thêm

$1125 USD trong 7 ngày
(1 Nhận xét)
2.0
chaplinskyimaksi

Hi there. I am blockchain developer and I have a rich experience on Blockchain world. I have created a lot of smart contract for NFTs and other tokens.. I am really familiar to ERC-721 and ERC-1155 tokens. In recent I Thêm

$1125 USD trong 7 ngày
(1 Nhận xét)
1.6
mrgansroma

Hello. How are you. I am a pro blockchain developer with over 5 years of good experience reevaluating react js and cryptocurrencies and smart contracts. I've been dedicated to Nft Marketing Web Development for over 3 Thêm

$800 USD trong 7 ngày
(1 Nhận xét)
1.8
mihhailovajulia5

Hello. How are you today? I have read your job post very carefully and I am interested in your project. I am a new developer here. But I have many experiences and strong skills in Blockchain and Cryptocurrency. So I ca Thêm

$750 USD trong 7 ngày
(1 Nhận xét)
2.0
yevhenvzlom

Dear Sir. I am very interested in your project as I have rich experience in NFT and smart contract development. [login to view URL] [login to view URL] [login to view URL] https://demo-toothlesswizard Thêm

$1125 USD trong 7 ngày
(1 Nhận xét)
1.4