Signer Quickstart

Getting started with the Signer is very similar to getting started with React.

Get your API key and create an account config

1. Get your API key by creating a new app in your Alchemy Dashboard

   Make sure Ethereum is enabled for your app under the Networks tab

2. Create a new account config in your Account Kit Dashboard

   1. Apply the config to your app from step 1

      

   2. Enable authentication methods you want to support.

      
      Email auth

      If you want to use email auth, toggle on email.

      • For testing, use http://localhost:3000 as the Redirect URL (Note http not https)
      • The user will be redirected to the Redirect URL if you use the magic link email flow
      • Optionally stylize ✨ the email with your brand color and logo!
      
      Social auth

      If you want to enable social login, toggle which auth providers you want to support.

      • For testing, add http://localhost:3000 as a whitelisted origin

      • Add the link that your dapp will be running on to the whitelisted origin list

      • Optionally enter your own OAuth credentials or use our defaults

        

3. Create the config and copy the API Key

   

Install the Signer package

Prerequisites

• minimum Typescript version of 5
• pin viem to 2.20.0 (yarn add [email protected])

Installation

$
yarn add @account-kit/signer

Create a signer instance

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import { AlchemyWebSigner } from "@account-kit/signer";
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export const signer = new AlchemyWebSigner({
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  client: {
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    connection: {
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      apiKey: "API_KEY",
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    },
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    iframeConfig: {
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      iframeContainerId: "alchemy-signer-iframe-container",
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    },
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  },
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});

Authenticate a user

Next, you’ll need to authenticate your user before you can use the Signer as an owner on the account.

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import { signer } from "./signer";
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const result = await signer.authenticate({
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  type: "email",
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  email: "[email protected]",
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});

Use signer as owner on Smart Account

Now that you have authenticated your user, you can use the signer as an owner on a Smart Contract Account.

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import { createLightAccount } from "@account-kit/smart-contracts";
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import { sepolia } from "@account-kit/infra";
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import { http } from "viem";
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import { signer } from "./signer";
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const account = await createLightAccount({
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  signer,
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  chain: sepolia,
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  transport: http(`${sepolia.rpcUrls.alchemy.http[0]}/API_KEY`),
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});