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Connect Keplr

Add the chain​

With a devnet running (see Run a node), suggest the chain to Keplr programmatically — there's no need to hand-author the ChainInfo object yourself:

import { connectKeplr } from "@lastcoinvision/sdk";

const { signer, client } = await connectKeplr(window.keplr, {
  chainId: "lcv-devnet",
  chainName: "LastcoinVision Devnet",
  rpcEndpoint: "http://localhost:26657",
  restEndpoint: "http://localhost:1317",
});

const [account] = await signer.getAccounts();
console.log(account.address); // lcv1...

This suggests the chain (bech32 prefix lcv, denom ulcv, 6 decimals), enables it, and returns a ready SigningStargateClient registered with every custom module's message types (see @lastcoinvision/sdk).

Check the connection​

curl -s http://localhost:1317/cosmos/bank/v1beta1/balances/lcv1youraddress

Key portability caveat​

Keplr-side accounts on this chain use the keyring's default secp256k1 (not the eth_secp256k1 opt-in lcvd keys add --algo path), so a Keplr account and a MetaMask account derived from the same mnemonic are two independent keys, not two views of one account — see Connect MetaMask and the technology page for why.

Get test funds​

curl -X POST https://faucet.lastcoinvision.com/faucet \
  -H "Content-Type: application/json" \
  -d '{"address":"lcv1youraddress"}'