Wallets API Quickstart (SDK)

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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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import { LocalAccountSigner } from "@aa-sdk/core";
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const signer = LocalAccountSigner.privateKeyToAccountSigner(PRIVATE_KEY); // we use a private key signer as an example here
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const transport = alchemy({
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  apiKey: ALCHEMY_API_KEY, // use your Alchemy app api key here!
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});
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const client = createSmartWalletClient({
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  transport,
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  chain: arbitrumSepolia, // use any chain imported from @account-kit/infra here!
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  signer,
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});

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const account = await client.requestAccount();
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// get the address
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const address = account.address;

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import { createPublicClient } from "viem";
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const message = "we are so back";
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const signature = await client.signMessage({ message });
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const publicClient = createPublicClient({
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  chain: arbitrumSepolia,
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  transport: transport,
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});
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const isValid = await publicClient.verifyMessage({
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  address: account.address, // fetched from await client.requestAccount()
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  message,
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  signature,
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});

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// assuming you have a typedData variable
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const signature = await client.signTypedData({ typedData });
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const isValid = await publicClient.verifyTypedData({
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  address: account.address, // fetched from await client.requestAccount()
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  ...typedData,
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  signature,
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});

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import { zeroAddress } from "viem";
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const account = await client.requestAccount();
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const preparedCalls = await client.prepareCalls({
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  calls: [{ to: zeroAddress, value: "0x0" }], // callData is optional in a "data" parameter
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  from: account.address,
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  // "capabilities" is a data structure that hold gas manager data (as seen below) or permission data
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  capabilities: {
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    paymasterService: {
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      policyId: GAS_MANAGER_POLICY_ID, // put your gas manager policy ID here
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    },
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  },
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});
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// Sign the calls
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const signedCalls = await client.signPreparedCalls(preparedCalls);
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// Send the userOp
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const result = await client.sendPreparedCalls(signedCalls);
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// Check calls status.
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const status = await client.getCallsStatus(result.preparedCallIds[0]!);