> ## Documentation Index
> Fetch the complete documentation index at: https://docs.delegare.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Quickstart

> Get your first Delegare payment working in 10 minutes.

The fastest way to understand Delegare is to run our end-to-end example. You will act as both the **Merchant** (setting up a server) and the **User** (authorizing a spending mandate).

<Note>
  **Prerequisites:** You need Node >=22 and pnpm >=9 installed on your machine.
</Note>

### 1. Get Sandbox Credentials

1. Go to the [Delegare Sandbox Dashboard](https://app.sandbox.delegare.dev).
2. Register a new test merchant account.
3. Copy your `merchantId` and `testApiKey`.

### 2. Clone the Example App

We have provided an Express server that acts as a mock merchant (e.g., a pizza shop or API service).

```bash theme={null}
git clone https://github.com/delegare/delegare.git
cd delegare/examples/express-checkout
pnpm install
```

### 3. Configure the Environment

Create an environment file:

```bash theme={null}
cp .env.example .env
```

Open `.env` and paste your sandbox credentials:

```env theme={null}
DELEGARE_BASE_URL=https://api.sandbox.delegare.dev/v1
DELEGARE_MERCHANT_ID="your_merchant_id"
DELEGARE_API_KEY="your_test_api_key"

# Optional: Set this to your USDC wallet address if you want to test x402 auto-payments
# MERCHANT_USDC_WALLET="0x..."
```

### 4. Run the Merchant Server

Start your mock merchant backend:

```bash theme={null}
pnpm dev
```

*(Leave this running in the terminal)*

### 5. Generate a Buyer Mandate

Open a **new terminal tab** in the same directory. We will now run a script that simulates a user approving a budget for an AI agent.

```bash theme={null}
pnpm setup
```

1. The script will generate a Setup URL. Click the link to open it in your browser.
2. In the Sandbox UI, authorize a \$50/month limit for this agent. You can use Stripe test cards.
3. Once approved, return to your terminal. The script will print out a long string starting with `eyJhbGci...` - this is your **Intent Mandate**.

### 6. Execute an Agent Charge

Now, pretend you are the AI agent who holds this mandate and wants to buy something from the merchant.

Run this `curl` command, replacing the `intentMandate` with your token:

```bash theme={null}
curl -X POST http://localhost:4000/api/checkout \
  -H "Content-Type: application/json" \
  -d '{
    "intentMandate": "eyJhbGciOiJFU...",
    "item": "large_pepperoni_pizza",
    "deliveryAddress": "123 AI Avenue"
  }'
```

### 7. View the Result

Look at your first terminal (the merchant server). You should see logs indicating that the Delegare SDK successfully executed the charge against the agent's limit.

**Congratulations!** You just processed an agent-authorized payment without sharing any credit card details.

***

### Next Steps

* Learn how to integrate the [Typescript SDK](/sdk-tools/typescript-sdk) into your own backend.
* Read about our [Security Model](/concepts/security-model) to see how limits are enforced.
* Add payment capabilities to Claude Desktop with our [MCP Tools](/sdk-tools/mcp-tools).