India 
WEB3 Center for Innovation, Trusted by industry leaders
Bring your vision to life with the API that the best Web3 projects rely on!
Klaytn APIs
Real-time blockchain data streaming
Get user token information
blockchain.nft_metatdata
Create a crypto wallet
Aggregation of Contract Data
Exchange Development
Leveraging our tutorials and API references with easy code copy and implementation,
we can reduce Web3 release time by 83% on average.
Response Time
0.5s
A different company
0.87s
A different company
1.1s
A different company
1.65s
87%
Faster average time To market
Web3 Wallet Development, Realize with Amazing Speed!
To expedite the project launch, BLOCKSDK's wallet generation API, coin transfer API, NFT transfer, NFT inquiry, and more. All APIs required for wallet development are supported. Ethereum Dapp can be built right away!
Establishing a Cryptocurrency Exchange
BLOCKSDK's crosschain KIP-7 Token API, coin transfer API, stream API, DEX DB service, etc. make it easy to add real-time token prices, wallet balances, transfers, and liquidity to DEX exchanges. Building crypto wallets, DEX, and Web3 token analysis tools has never been this easy!
Developing NFT Platform in the Shortest Time
APIs to access NFT data from all cross-chains are supported. All APIs needed to develop NFT services, including direct execution APIs, NFT transport APIs, and NFT metadata inquiry APIs, are supported. NFT services can be built at a tremendous speed.
Do you want More blockchain APIs?
Block API
It precisely and accurately unlocks the power of raw blockchain data.
Address API
Create a wallet address and send the coins that the wallet owns.
Transfer API
Inquire the detailed data of the transaction, or create and send the transaction.
KIP-7 API
Send token balance or transaction details, ownership details inquiry, and tokens.
NFT API
KIP-17 Or KIP-37 On inquires NFT data such as metadata inquiry for NFTs based
Smart Contract API
Enquires and executes the expected gas ratio or direct data query for the direct execution.
Market API
Inquire auction information on NFT markets, data on sales registration.
Search Crypto API
Query the historical data of the token you owned.
Build and deploy DApps
Easily To all major blockchains
SDKs based
On various languages are supported.
We offer a variety of sample codes, including sample wallets and NFT markets. Use our SDK to navigate the blockchain with concise code and get additional information with industry-leading documents!
const BLOCKSDK = require("blocksdk-js");
const client = new BLOCKSDK(
"Node_RPC_TOKEN",
"https://mainnet-api.blocksdk.com"
);
client.undefined.GetBlockChainInfo().then(
answer => console.log(answer)
);
client.undefined.GetBlock("block" : "blockNumber or blockHash").then(
answer => console.log(answer)
);
Documentation
Find powerful documents for all supported chains and find out how to call the WEB3 API using the latest libraries and code examples across Python, Ruby, JavaScript, and cURL.
Looking at the document
Guide
Find the right guide to help distribute smart contracts, create NFTs, build distributed applications, and more on all supported blockchains.
Looking at the guide
Blog
Check out the latest announcements about major releases, new features, chains, and more.
Take a look at your blog
Are you ready?
Purchase verified coin solutions directly from the BLOCKSDK marketplace and start your business. Meet various blockchain solutions such as exchanges, DEX, NFT markets, DeFi in one place. Deploy and operate quickly with support from our professional technical team.