How to programmatically create a wallet

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import "dotenv/config";
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import { createServerSigner } from "@account-kit/signer";
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import { createSmartWalletClient } from "@account-kit/wallet-client";
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import { alchemy, arbitrumSepolia } from "@account-kit/infra";
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const ALCHEMY_API_KEY = process.env.ALCHEMY_API_KEY!;
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const ALCHEMY_POLICY_ID = process.env.ALCHEMY_POLICY_ID!;
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const ACCESS_KEY = process.env.ACCESS_KEY!;
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if (!ALCHEMY_API_KEY || !ALCHEMY_POLICY_ID || !ACCESS_KEY) {
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  throw new Error("Missing ALCHEMY_API_KEY, ALCHEMY_POLICY_ID, or ACCESS_KEY in env");
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}
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async function main() {
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  // 1) Create server signer using access key
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  const signer = await createServerSigner({
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    auth: {
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      accessKey: ACCESS_KEY,
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    },
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    connection: {
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      apiKey: ALCHEMY_API_KEY,
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    },
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  });
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  // 2) Transport + Smart Wallet Client
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  const transport = alchemy({ apiKey: ALCHEMY_API_KEY });
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  const client = createSmartWalletClient({
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    transport,
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    chain: arbitrumSepolia,
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    signer,
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  });
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  // 3) Account & counterfactual address
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  const account = await client.requestAccount();
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  const address = account.address;
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  console.log("Counterfactual address:", address);
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  // 4) Prepare → sign → send (sponsored) to trigger deployment
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  const prepared = await client.prepareCalls({
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    from: address,
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    calls: [
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      {
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        to: "0x0000000000000000000000000000000000000000",
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        data: "0x",
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        value: "0x0",
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      },
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    ], // minimal call to deploy the account contract
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    capabilities: {
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      paymasterService: { policyId: ALCHEMY_POLICY_ID },
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    },
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  });
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  const signed = await client.signPreparedCalls(prepared);
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  const sent = await client.sendPreparedCalls(signed);
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  // 5) Wait for inclusion → tx hash
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  const txHash = await client.waitForCallsStatus({
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    id: sent.preparedCallIds[0],
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  });
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  console.log("Prepared call IDs:", sent.preparedCallIds);
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  console.log("Tx hash:", txHash);
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  return { address, preparedCallIds: sent.preparedCallIds, txHash };
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}
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main().then(
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  (res) => {
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    console.log("✅ Wallet provisioned:", res);
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    process.exit(0);
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  },
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  (err) => {
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    console.error("❌ Failed:", err);
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    process.exit(1);
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  },
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);