Klaytn

Klaytn is a highly optimized, BFT-based public blockchain that aims to meet the enterprise-grade reliability. Key design goals are;

• Immediate finality.
• High TPS that meets real-world use cases.
• Lower the cost of running Blockchain Applications.
• Lower the barriers to entry for end-users.
• Ease the technology adoption process for industry.

Quick links

**[Klaytn](https://klaytn.foundation/)**

**[Docs](https://docs.klaytn.foundation/)**

**[Github](https://github.com/klaytn)**

Connect wallet

You can set up your MetaMask wallet to connect to Klaytn Chain RPC. You can then perform transactions and interact with the network.

Get started

1. Open your Metamask Extension and click the 'Network' drop down menu at the top.
2. Select 'Custom RPC'.
3. Enter the settings for the required project as follows in the table below:

Chain	Custom RPC Category	Details
Klaytn Chain	NETWORK NAME:	Klaytn Chain RPC
	NEW RPC URL:	https://username.chainprtcl.net/klaytn/uid
	CHAIN ID:	8217
	SYMBOL:	KLAY
	BLOCK EXPLORER:	https://scope.klaytn.com

Integrate Code

web3 library

• clientVersion

Returns the current client version.

Example request

curl https://username.chainprtcl.net/klaytn/uid \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}'

Example response

{"jsonrpc":"2.0","id":1,"result":"Klaytn/v1.10.1/linux-amd64/go1.15.7"}

net library

• net_version

Returns the current network id.

Example request

curl https://username.chainprtcl.net/klaytn/uid \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":67}'

Example response

{"jsonrpc":"2.0","id":67,"result":"8217"}

eth library

Example request

eth_estimateGas

Returns the gas price for the transaction in hex.

curl https://username.chainprtcl.net/klaytn/uid \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{
    "jsonrpc":"2.0",
    "method":"eth_estimateGas",
    "params":[{
    "from": "0x8D97689C9818892B700e27F316cc3E41e17fBeb9",
    "to": "0xd3CdA913deB6f67967B99D67aCDFa1712C293601",
    "value": "0x186a0"
    }],
    "id":1
}'

Example response

{"jsonrpc":"2.0","id":1,"result":"0x5208"}

Pricing

Node Type	Price (USD)
Fullnode	$728
Archive Node	$1118
Testnet	$338