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You are viewing docs for the previous version of the Wallets SDK. We recommend upgrading to V1. See the updated version of this page or the V1 migration guide.

Before you start

Set up your project and get an API key.
1

Install the SDK

Run the following command to install the SDK:
npm i @crossmint/wallets-sdk
2

Create a wallet

See all supported chains here.
index.ts
import { CrossmintWallets, createCrossmint } from "@crossmint/wallets-sdk";

const crossmint = createCrossmint({
    apiKey: "<your-server-api-key>",
});

const crossmintWallets = CrossmintWallets.from(crossmint);

const wallet = await crossmintWallets.createWallet({
    chain: "<your-chain>",
    signer: {
        type: "<signer-type>",
    },
});

console.log(wallet.address);

​
Launching in Production

For production, the steps are almost identical, but some changes are required:
  1. Create a developer account on the production console
  2. Create a production client API key on the API Keys page with the API scopes users.create, users.read, wallets.read, wallets.create, wallets:transactions.create, wallets:transactions.sign, wallets:balance.read, wallets.fund
  3. Replace your test API key with the production key

​
Learn More

Check Balances

Check the balance of a wallet.

Transfer Tokens

Send tokens between wallets.

Operational Signers

Register operational signers on a wallet.

API Reference

Deep dive into API reference docs.

Talk to an expert

Contact our sales team for support.