Power Your Harmony Apps with Real-Time and Historical Blockchain Data
GoldRush serves decoded Harmony data through one REST API. Networks covered: harmony-mainnet (chain ID 1666600000, 2-second blocks) and harmony-testnet (chain ID 1666700000, 2-second blocks). 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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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
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.