# Request a Quote

> Request a quote for a swap from Zert's backend.

### `request`

Fetches a quote for a swap given source chain, destination chain, tokens, amount, slippage, and recipient.

**Parameters**

* `body` (QuoteRequest, required): Quote request.
  * `fromChain` (string): Source chain (e.g. `arbitrum`).
  * `toChain` (string): Destination chain.
  * `tokenIn` (string): Input token symbol or ref (e.g. `USDC`).
  * `tokenOut` (string): Output token symbol or ref (e.g. `USDT`).
  * `network` (string): Network (e.g. `mainnet`).
  * `amount` (string): Amount as string (e.g. `"100.00"`).
  * `slippageBps` (number): Slippage tolerance in basis points (e.g. `75` = 0.75%).
  * `recipient` (string): Recipient address.

**Returns**

A Promise that resolves to `QuoteResponse`.

* `data.quoteId` (string): Quote identifier.
* `data.expiresAtMs` (number): Quote expiry in milliseconds.
* `data.routes` (QuoteRoute\[]): Route options (`routeId`, `provider(s)`, `expectedAmountOut`, etc.).
* `meta.requestId` (string): Request identifier.
* `meta.timestamp` (string): Response timestamp.

```typescript
import { RoutingEngineSDK } from 'routing-engine-sdk';

const sdk = new RoutingEngineSDK({
  api: { apiKey: 'your-api-key' },
});

try {
  const response = await sdk.quote.request({
    fromChain: 'arbitrum',
    toChain: 'avax',
    tokenIn: 'TBTC',
    tokenOut: 'WETH',
    network: 'mainnet',
    amount: '100.00',
    slippageBps: 75,
    recipient: '0x1234567890123456789012345678901234567890',
  });
  console.log('Quote ID:', response.data.quoteId);
  console.log('First route:', response.data.routes[0]?.routeId);
} catch (error) {
  console.error(error);
}
```


---

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```
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```

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