Query multiple DEX aggregators and find the best price

Expands tokens, pools, and chains beyond any single aggregator
Provides multiple quotes to find the best price
Provides redundancy when a provider fails

Aggregators—

core

import { getQuotes } from "@spandex/core";
import { config } from "./config.js";
 
const quotes = await getQuotes({
  config,
  swap: {
    chainId: 8453,
    inputToken: "0x4200000000000000000000000000000000000006",
    outputToken: "0xd9AAEC86B65D86f6A7B5B1b0c42FFA531710b6CA",
    mode: "exactIn",
    inputAmount: 1_000_000_000_000_000_000n, // 1 WETH
    slippageBps: 50,
    swapperAccount: "0x1234567890abcdef1234567890abcdef12345678",
  },
});
 
if (quotes.length === 0) {
  throw new Error("No providers responded in time");
}
 
for (const quote of quotes) {
  if (quote.success) {
    console.log(
      `${quote.provider}: returned ${quote.outputAmount.toString()} after ${quote.latency.toFixed(0)}ms`,
    );
  } else {
    console.log(`${quote.provider}: failed with error ${quote.error}`);
  }
}