Power Your Harmony Apps with Real-Time and Historical Blockchain Data
Power Your Harmony Apps with Real-Time and Historical Blockchain Data
Explore Harmony, the open blockchain with 2-second finality, low fees, and secure cross-chain bridges for Ethereum apps. Dive into historical data now!
Overview
GoldRush's Harmony APIs power everything from weekend side projects to billion-dollar apps.Get fast, accurate Harmony 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 Harmony app
Trading & DeFiLaunch bots, dashboards, or analytics tools
Building at scaleEnterprise wallets, compliance, or infrastructure
Supported Products
Foundational API
Foundational API
Access structured historical data on any address using REST APIs.
Token BalancesTransactions and Wallet ActivitySecurity and Approvals API
Token BalancesTransactions and Wallet ActivitySecurity and Approvals APIFoundational API
Frequently Asked Questions
Yes, we support Harmony 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.
© 2026 Covalent. All rights reserved.
© 2026 Covalent. All rights reserved.