Power Your Ethereum Apps with Real-Time and Historical Blockchain Data

GoldRush serves decoded Ethereum data through one REST API. Networks covered: eth-mainnet (chain ID 1, 12-second blocks), eth-sepolia (chain ID 11155111, 8-second blocks) and eth-holesky (chain ID 17000). The Foundational API returns token balances, historical transactions and wallet activity, and token approvals data. Start with a 14-day free trial, then $10/month; production plans from $250/month with SLA support.
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GoldRush multichain data dashboard showing wallet balances and onchain activity across 100+ blockchains

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Overview

GoldRush's Ethereum APIs power everything from weekend side projects to billion-dollar apps.Get fast, accurate Ethereum data with simple REST or WebSocket APIs. We index the full chain, from genesis to the latest block, covering balances, transactions, logs, pricing, and smart contract events. No node infrastructure required.
Built for:
Learning & experimentingBuild your first Ethereum app
Trading & DeFiLaunch bots, dashboards, or analytics tools
Building at scaleEnterprise wallets, compliance, or infrastructure

Supported Products

Foundational API

Access structured historical data on any address using REST APIs.
Square BulletToken Balances
Square BulletTransactions and Wallet Activity
Square BulletSecurity and Approvals API

Foundational API

Chain nameChain IDBlock explorerBlocktime (seconds)TypeLast Synced Block Timestamp
eth-mainnet
1
https://etherscan.io/12MainnetLoading...
eth-sepolia
11155111
https://sepolia.etherscan.io/8TestnetLoading...
eth-holesky
17000
https://holesky.etherscan.io/12TestnetLoading...

Frequently Asked Questions

Yes, we support Ethereum Sepolia Testnet and Holesky Testnet.

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Get started with GoldRush API in minutes. Sign up for a free API key and start building.

Support

Explore multiple support options! From FAQs for self-help to real-time interactions on Discord.

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