Klaytn network banner

Klaytn Network

Introduction

The Klaytn Network is a global public blockchain platform developed by Ground X, the blockchain affiliate of the leading South Korean Internet company, Kakao. Klaytn is a service-centric blockchain platform providing an intuitive development environment and friendly end-user experience. It is built upon solid reliability and significant stability with substantial service development for mass adoption. The platform allows real-world applications of large scale to be produced right away so that our end-users can make full use of services without much expertise in blockchain or cryptocurrency.

Quick facts

Property Value
Klaytn Mainnet Cypress chainId 8217
Klaytn Blockchain Explorer https://scope.klaytn.com/
Block time ~1 second

Supported endpoints

Get token balances for address
Class A
Given chain_id and wallet address, return current token balances along with their spot prices. This endpoint supports a variety of token standards like ERC20, ERC721 and ERC1155. As a special case, network native tokens like ETH on Ethereum are also returned even though it’s not a token contract.
GET /v1/:chain_id/address/:address/balances_v2/
Get transactions for address
Class A
Given chain_id and wallet address, return all transactions along with their decoded log events. This endpoint does a deep-crawl of the blockchain to retrieve all kinds of transactions that references the address including indexed topics within the event logs.
GET /v1/:chain_id/address/:address/transactions_v2/
Get ERC20 token transfers for address
Class A
Given chain_id, wallet address and contract-address, return all ERC20 token contract transfers along with their historical prices at the time of their transfer.
GET /v1/:chain_id/address/:address/transfers_v2/
Get token holders as of any block height
Class A
Given chain_id and wallet address, return a paginated list of token holders. If block-height is omitted, the latest block is used.
GET /v1/:chain_id/tokens/:address/token_holders/
Get log events by contract address
Class A
Given chain_id and contract address, return a paginated list of decoded log events emitted by a particular smart contract.
GET /v1/:chain_id/events/address/:address/
Get log events by topic hash(es)
Class A
Given chain_id and topic hash(es), return a paginated list of decoded log events with one or more topic hashes separated by a comma.
GET /v1/:chain_id/events/topics/:topic/

Go to Covalent’s API Reference


Appendix

Klaytn Gas token

KLAY token is the native token of the Klaytn network. This is similar to Ether in Ethereum. To interact with the Klaytn network, KLAY tokens are required to pay as gas fees. KLAY serves as a means of payment and exchange for all applications running in the Klaytn ecosystem. Covalent’s responses automatically returns gas_* fields in the KLAY units.