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

# Getting Started

> Send your first payment with Snack Money API

This guide will help you send your first USDC payment to an X (Twitter) user using the simplest integration method: **x402-axios**.

## Quick Example

Send USDC to any X user with just a few lines of code:

```typescript theme={null}
import axios from "axios";
import { withPaymentInterceptor } from "x402-axios";
import { privateKeyToAccount } from "viem/accounts";

// Create a signer from your private key
const account = privateKeyToAccount(process.env.EVM_PRIVATE_KEY);

// Wrap axios with x402 payment interceptor
const api = withPaymentInterceptor(
  axios.create({ baseURL: "https://api.snack.money" }),
  account as never
);

// Send payment - x402 handles the payment flow automatically
const response = await api.post("/payments/x/pay", {
  amount: 0.01,
  currency: "USDC",
  receiver: "0xmesuthere",
  description: "Payment via x402"
});

console.log("Payment successful!", response.data);
// {
//   "code": 200,
//   "msg": "0.01 USDC sent successfully",
//   "data": {
//     "txn_id": "...",
//     "amount": 0.01,
//     "receipt": "https://snack.money/x/0xmesuthere?txn=..."
//   }
// }
```

## How It Works

1. **Initial Request**: Your app makes a payment request to Snack Money API
2. **402 Response**: API returns payment requirements (amount, recipient, chain)
3. **Auto Payment**: x402-axios automatically executes the on-chain USDC transfer
4. **Retry with Proof**: Request is retried with payment proof
5. **Success**: API processes the payment and returns confirmation

Learn more about the [x402 protocol](/introduction/x402).

## Prerequisites

* **Node.js 18+**
* **USDC balance** on Base or Solana network
* **Private key** for signing transactions

## Installation

```bash theme={null}
npm install axios x402-axios viem
```

## Environment Setup

Create a `.env` file:

```bash theme={null}
# For Base network (EVM)
EVM_PRIVATE_KEY=0x...

# For Solana network
SVM_PRIVATE_KEY=your_solana_private_key_base58
```

## Supported Platforms

Send payments to users on:

* **X (Twitter)** - `/payments/x/pay`
* **Farcaster** - `/payments/farcaster/pay`
* **GitHub** - `/payments/github/pay`

## Next Steps

* [**Explore SDK Examples**](/examples/overview) - See all integration options
* [**Use the CLI**](/cli/overview) - Send payments from command line
* [**API Reference**](/api-reference/introduction) - Full API documentation