Bitcoin API

Token balances with prices, transaction history and token approvals for any Bitcoin address, indexed from genesis to the latest block. One REST API key, no nodes to run.

Get a free API keyRead the Bitcoin docs
// Token balances on Bitcoin: 1 credit
const chain = "btc-mainnet";
const address = "34xp4vRoCGJym3xR7yCVPFHoCNxv4Twseo";
const url = "https://api.covalenthq.com/v1/" + chain +
  "/address/" + address + "/balances_v2/";

const key = process.env.GOLDRUSH_API_KEY;
const res = await fetch(url, {
  headers: { Authorization: `Bearer ${key}` },
});
const { data } = await res.json();

for (const token of data.items) {
  // balance, quote (USD value), quote_rate …
  console.log(token.contract_ticker_symbol, token.pretty_quote);
}

Used by EY, Fidelity and Consensys

  • EY
  • Fidelity
  • Consensys
  • Jump
  • Ondo
  • ThorWallet
  • Rainbow
  • Matcha
  • Velora
  • AtomicWallet
  • Atlas Wallet
  • OneKey
Read the case studies

Query Bitcoin data

REST endpoints that return decoded, priced Bitcoin data in one call, billed in credits per request. The same key works on every other chain GoldRush supports.

Every endpoint supported on Bitcoin

Bitcoin on GoldRush

GoldRush serves decoded Bitcoin data through one REST API. Network covered: btc-mainnet (chain ID 20090103, 600-second blocks), with block explorer data from blockstream.info. The Foundational API returns token balances, historical transactions and wallet activity, and token approvals data.

btc-mainnetFrontier chain
Chain name
btc-mainnet
Chain ID
20090103
Block time
600 s
Gas token
BTC
Block explorer
blockstream.info
Last synced block
Loading...
Data last updated . The last synced block refreshes every 5 seconds.

Chain details from the Bitcoin chain reference.

What teams build on Bitcoin

  • Wallets and portfolio trackers

    Show what any Bitcoin address holds, priced in USD, next to its full transaction history.

    Crypto wallet API

  • Crypto tax and accounting

    Pull every Bitcoin transaction for a client's addresses and reconcile it into reports.

    Tax and accounting data

  • DeFi dashboards

    Track Bitcoin positions, tokens and protocol activity without running an indexer.

    DeFi data

  • Risk and compliance

    Review Bitcoin counterparties and their activity before you onboard or pay them.

    Risk and compliance data

  • Analytics and research

    Answer questions about Bitcoin wallets and tokens from indexed history instead of raw RPC.

    Analytics data

  • AI agents

    Give Claude, Cursor and other agents Bitcoin data through the hosted GoldRush MCP server.

    GoldRush MCP server

Start building on Bitcoin

Every account starts with a 14-day free trial: 25,000 credits at 4 requests per second, no credit card. After that, Vibe Coding is $10 a month for prototypes and side projects, and Professional is $250 a month with 50 requests per second for production.

Get a free API keySee pricing

Bitcoin FAQ

Usage is billed in credits. Every account starts with a 14-day free trial of 25,000 credits with no credit card, then Vibe Coding is $10 a month and Professional $250 a month. See pricing.

Bitcoin API docs

Start here

Reference

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