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

Base is a low-cost, secure, developer-friendly Ethereum L2 that serves as a home for Coinbase’s onchain products.
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Overview

GoldRush's Base APIs power everything from weekend side projects to billion-dollar apps.Get fast, accurate Base 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 Base 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

Streaming API

Real-time, structured data on blockchain events over WebSockets. No polling. No lag.
Square BulletStreaming Token Balances
Square BulletOHLCV and Candlestick Data
Square BulletWallet Activity
Square BulletNew DEX Pairs

Foundational API

Chain nameChain IDBlock explorerBlocktime (seconds)TypeLast Synced Block Timestamp
base-mainnet
8453
https://basescan.org/2MainnetLoading...
base-sepolia-testnet
84532
https://base-sepolia.blockscout.com/2TestnetLoading...

Streaming API

Chain nameChain IDBlock explorerType
base-mainnet
8453
https://basescan.org/Mainnet
base-sepolia-testnet
84532
https://base-sepolia.blockscout.com/Testnet

Frequently Asked Questions

Yes, we support Base Sepolia Testnet.

Get Started

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.

Contact Sales

Interested in our professional or enterprise plans? Contact our sales team to learn more.