# Environment Variables

Create a .env.local file in apps/web/:\
NEXT\_PUBLIC\_STELLAR\_NETWORK=testnet NEXT\_PUBLIC\_HORIZON\_URL=<https://horizon-testnet.stellar.org>

\
Run the App\
pnpm dev\ <br>

📄 **Page 4: SDK Reference**

```markdown
# SDK Reference

The `@afriwage/sdk` package abstracts Stellar Horizon calls.

### `sendPayment`
Builds, signs, and submits a USDC payment transaction to the Stellar network.

### `getBalance`
Fetches the current XLM and USDC trustline balances for a given Stellar public key.

*(Note: Full JSDoc API reference coming soon as per GitHub Issue #13)*
```


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