Skip to main content

Documentation Index

Fetch the complete documentation index at: https://goldrush.dev/docs/llms.txt

Use this file to discover all available pages before exploring further.

​
Overview

Explore Harmony, the open blockchain with 2-second finality, low fees, and secure cross-chain bridges for Ethereum apps. Dive into historical data now!
GoldRush offers the most comprehensive Harmony Data API suite for developers, analysts, and enterprises. Whether you’re building a DeFi dashboard, a wallet, a trading bot, an AI agent or a compliance platform, our Harmony Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need.

​
Supported APIs

​
Mainnet

PropertyValue
Chain Nameharmony-mainnet
Chain ID1666600000
Network TypeArchived Chain
Support Levelarchived
Block ExplorerExplorer
Official WebsiteHarmony Website
Native Gas TokenONE

​
Testnet

PropertyValue
Chain Nameharmony-testnet
Chain ID1666700000
PurposeDevelopment and testing network
Support Levelarchived
Block ExplorerExplorer
Official WebsiteHarmony Testnet Website
Native Gas TokenONE

​
API Usage

To use this blockchain network in GoldRush API calls, use:

​
Chain Name

  • harmony-mainnet (mainnet)
  • harmony-testnet (testnet)

​
Example Streaming Subscription

subscription {
  walletTxs(
    chain_name: HARMONY_MAINNET,
    wallet_addresses: ["0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"]
  ) {
    block_signed_at
    block_height
    tx_hash
    tx_offset
    successful
    decoded_type
  }
}
Connect via WebSocket at wss://streaming.goldrushdata.com/graphql with your API key in the connection parameters. See the Streaming API Quickstart for full setup details.

​
Additional Resources