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How to use Harmony
Harmony is a layer-1 blockchain using sharding and Effective Proof of Stake to achieve scalability, security, and decentralization. The network was launched in 2019 and features trustless cross-chain bridges and four shards, which process transactions in parallel. Effective Proof of Stake encourages decentralization of validators, and sharding shares the network's load among validators, delegators, and users.
Its native token ONE is used for transaction fees, governance, and staking. You can purchase ONE on Binance with a credit or debit card or trade it for another cryptocurrency. Once purchased, you can store ONE on EVM-compatible wallets like MetaMask and Binance Chain Wallet.
MetaMask allows users to store and manage account keys, broadcast transactions, send and receive Ethereum-based cryptocurrencies and tokens, and securely connect to decentralized applications through a compatible web browser or the mobile app's built-in browser. Developers achieve a connection between Metamask and their decentralized applications by using a JavaScript plugin such as Web3js or Ethers to define interactions between Metamask and Smart Contracts.
Open MetaMask and click the list of networks at the top, then select "Add Network".
You will be prompted for additional information. Use the table below to complete the step. Below you will see multiple options for RPC URL and Chain ID corresponding to mainnet vs testnet, and the various shards within each.
Field | Mainnet | Testnet |
|---|---|---|
Network Name | Harmony Mainnet | Harmony Testnet |
New RPC URL | https://api.harmony.one | https://api.s0.b.hmny.io |
Chain ID | 1666600000 | 1666700000 |
Currency symbol | ONE | ONE |
Block Explorer URL |
The example below shows the configuration that needs to be done to connect to Harmony Mainnet on Shard 0:
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Click the Save button and your configuration should be done!
Last modified 9mo ago