TypeScript

End-to-end TypeScript example: call the Velora Market API to quote 1 ETH → USDC via plain fetch.

A minimal Node script that calls GET /prices and prints the quoted destAmount. No SDK, just fetch.

File tree

my-app/
├─ package.json
├─ tsconfig.json
└─ src/
   └─ quote.ts

Install

pnpm

mkdir my-app && cd my-app
pnpm init
pnpm add -D typescript tsx @types/node
pnpm tsc --init

src/quote.ts

const params = new URLSearchParams({
  srcToken:     '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE', // ETH
  destToken:    '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', // USDC
  amount:       '1000000000000000000', // 1 ETH
  srcDecimals:  '18',
  destDecimals: '6',
  side:         'SELL',
  network:      '1',
  userAddress:  '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045',
  partner:      'my-app-name',
  version:      '6.2',
});

const res = await fetch(`https://api.velora.xyz/prices?${params}`);

if (!res.ok) {
  throw new Error(`HTTP ${res.status}: ${await res.text()}`);
}

const { priceRoute } = await res.json();

console.log('destAmount:', priceRoute.destAmount);
console.log('gasCostUSD:', priceRoute.gasCostUSD);

Run it

pnpm tsx src/quote.ts

You should see the quoted destAmount (USDC, 6 decimals) and gasCostUSD printed.

Next: build the transaction

Feed the priceRoute into POST /transactions/:chainId to get ready-to-broadcast calldata. See Market API → How it works.

Related pages

• Market API overview — when to use Market routing.
• Market API → How it works — quote → build → broadcast flow.
• Market API reference — full parameter list.
• SDK — typed TypeScript wrapper if you’d rather not handle HTTP yourself.