Multichain Data APIs for Builders, Traders and Teams.

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("YOUR_API_KEY");

const balances = await client.BalanceService
    .getTokenBalancesForWalletAddress(
        "eth-mainnet",
        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
    );

console.log(balances.data);

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("YOUR_API_KEY");

const activity = await client.TransactionService
    .getAllTransactionsForAddress(
        "eth-mainnet",
        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
    );

console.log(activity.data);

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("YOUR_API_KEY");

const ohlcv = await client.PricingService
    .getTokenPrices(
        "eth-mainnet",
        "USD",
        "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
    );

console.log(ohlcv.data);

import { createClient } from "graphql-ws";

const client = createClient({
    url: "wss://gr-staging-v2.streaming.covalenthq.com/graphql"
});

client.subscribe({
    query: `subscription {
        newDexPairs(chainName: "eth-mainnet") {
            pairAddress
            token0 { symbol }
            token1 { symbol }
        }
    }`
}, { next: console.log });

project: "trading-analytics"
topic: "hypercore.mainnet.ref.block.trades"

destination:
  type: "clickhouse"
  url: "clickhouse://db.example.com:9000/trading"
  user: "${CH_USER}"
  password: "${CH_PASSWORD}"
  batch_size: 5000

transforms:
  enriched_trades: >
    SELECT timestamp, coin, side, px, sz,
           usd_value, fee
    FROM enriched_trades
    WHERE coin IN ('BTC', 'ETH', 'SOL')

execution:
  mode: "unbounded"
  start_from: "earliest"