@sei-js/ledger

npm install @sei-js/ledger

import { createTransportAndApp } from '@sei-js/ledger';

const { transport, app } = await createTransportAndApp();

import { createTransportAndApp, getAddresses } from '@sei-js/ledger';

const { app } = await createTransportAndApp();
const { evmAddress, nativeAddress } = await getAddresses(app, "m/44'/60'/0'/0/0");

console.log('EVM address:', evmAddress);
console.log('Sei address:', nativeAddress);

import { SeiLedgerOfflineAminoSigner } from '@sei-js/ledger';

const ledgerSigner = new SeiLedgerOfflineAminoSigner(app, "m/44'/60'/0'/0/0");

const accounts = await ledgerSigner.getAccounts();
// [{ address: 'sei1...', pubkey: { type: 'tendermint/PubKeySecp256k1', value: '...' } }]

import { StdSignDoc } from '@cosmjs/amino';

const signDoc: StdSignDoc = {
  /* your transaction document */
};
const { signed, signature } = await ledgerSigner.signAmino('sei1...', signDoc);

import { coins, SigningStargateClient, StdFee } from '@cosmjs/stargate';
import { createTransportAndApp, getAddresses, SeiLedgerOfflineAminoSigner } from '@sei-js/ledger';

async function delegateWithLedger() {
  const rpcUrl = 'https://rpc-testnet.sei-apis.com/';
  const path = "m/44'/60'/0'/0/0";

  const { app } = await createTransportAndApp();
  const { nativeAddress } = await getAddresses(app, path);
  const ledgerSigner = new SeiLedgerOfflineAminoSigner(app, path);

  const client = await SigningStargateClient.connectWithSigner(rpcUrl, ledgerSigner);

  const msgDelegate = {
    typeUrl: '/cosmos.staking.v1beta1.MsgDelegate',
    value: {
      delegatorAddress: nativeAddress,
      validatorAddress: 'seivaloper1...',
      amount: coins(500, 'usei')
    }
  };

  const fee: StdFee = {
    amount: [{ denom: 'usei', amount: '20000' }],
    gas: '200000'
  };

  const result = await client.signAndBroadcast(nativeAddress, [msgDelegate], fee, 'Delegation via Ledger');

  console.log('Broadcast result:', result);
}

delegateWithLedger();