Wallets Server Quickstart

Docs | See all quickstarts

Introduction

Create and interact with Crossmint wallets creating all transactions on the server side and only using the client to sign with a non-custodial signer.

This quickstart uses Crossmint Auth and uses your email as a signer for that wallet.

Learn how to:

• Create a wallet
• View its balance for USDC
• Create a send USDC transaction from the server
• Sign a transaction with a non-custodial signer on the client

Setup

1. Clone the repository and navigate to the project folder:

git clone https://github.com/crossmint/wallets-server-quickstart.git && cd wallets-server-quickstart

2. Install all dependencies:

npm install
# or
yarn install
# or
pnpm install
# or
bun install

3. Set up the environment variables:

cp .env.template .env

4. Get a Crossmint client API key from here and add it to the .env file. Make sure your API key has the following scopes: users.create, users.read, wallets.read, wallets.create, wallets:transactions.create, wallets:transactions.sign, wallets:balance.read, wallets.fund.

NEXT_PUBLIC_CROSSMINT_API_KEY=your_api_key

5. Get a Crossmint server API key from here and add it to the .env file. Make sure your API key has the following scopes: wallets.read and wallets:transactions.create.

CROSSMINT_SERVER_API_KEY=your_api_key

6. Run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev

Using in production

1. Create a production API key.`