KAS uses Basic HTTP Auth. All requests must have a correct Authorization header. You can create the Credential for Basic Auth by using username as AccessKey ID and password as SecretAccessKey obtained on KAS Console.

NOTE

KAS Credential enables full access to KAS and the Klaytn accounts created using the Wallet API. It enables asset transfers of the Klaytn account's assets (like KLAY) as well as Transaction Executions. To keep your KAS/Klaytn accounts secure, do not share your KAS API Secret Access Key with others.

cURL

  curl --location --request POST 'https://node-api.klaytnapi.com/v1/klaytn' \
  -u {{your_accessKeyId}}:{{your_secretAccessKey}} \
  --header 'x-chain-id: 8217' \
  --header 'Content-Type: application/json' \
  --data-raw '{"jsonrpc":"2.0","method":"klay_blockNumber","params":[],"id":1}'

caver-js

  const accessKeyId = "{{your_accessKeyId}}";
  const secretAccessKey = "{{your_secretAccessKey}}";

  const option = {
    headers: [
      {name: 'Authorization', value: 'Basic ' + Buffer.from(accessKeyId + ':' + secretAccessKey).toString('base64')},
      {name: 'x-chain-id', value: '8217'},
    ]
  }

  const caver = new Caver(new Caver.providers.HttpProvider("https://node-api.klaytnapi.com/v1/klaytn", option))

caver-java

  HttpService httpService = new HttpService("https://node-api.klaytnapi.com/v1/klaytn");
  String auth = Credentials.basic("{{your_accessKeyId}}", "{{your_secretAccessKey}}", StandardCharsets.UTF_8);
  httpService.addHeader("Authorization", auth);
  httpService.addHeader("x-chain-id", "8217")
  Caver caver = Caver.build(httpService);