Exchange Rates

Learn how to fetch exchange rates between tokens and fiat currencies on Aave v4.

Exchange rates in Aave are provided by Oracles using Chainlink price feeds.

AaveKit provides current conversion rates between ERC-20 tokens, native tokens, and a limited set of fiat currencies: USD, EUR, and GBP. For smart-contract integrations, query USD reserve prices directly from the spoke oracle.

React
TypeScript
GraphQL
Solidity

Use the useExchangeRate hook for live exchange rates with automatic polling every 10 seconds, or the imperative useExchangeRateAction hook for on-demand exchange rates.

import { type ExchangeRateRequest, useExchangeRate } from "@aave/react";
function ExchangeRate({ request }: { request: ExchangeRateRequest }) {  const { data, loading, error } = useExchangeRate(request);
  if (loading) return <div>Loading…</div>;
  if (error) return <div>Error: {error.message}</div>;
  // data: FiatAmount  return (    <span>      {data.symbol}      {data.value.toFixed(2)}    </span>  );}

See below some examples of request objects.

import { evmAddress, chainId, Currency } from "@aave/react";
const request: ExchangeRateRequest = {  from: {    erc20: {      chainId: chainId(1),      address: evmAddress("0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"),    },  },  to: Currency.Usd,};