Harmony RPC Endpoint

Guide on how to add Harmony to MetaMask and other wallets

Add 1RPC

Network

An open EVM chain offering 100x lower fees than Ethereum. Emphasizing decentralization, scalability & security with AI to scale trust and create a radically fair economy.

Harmony: RPC and Chain Settings

Add Harmony 1RPC to your wallet to use our free Harmony RPC endpoint. Follow the steps below to add the Harmony RPC endpoint manually to any Web3 wallet:

Check that your wallet has RPC settings and configurability
Navigate to add a new network
Paste the network details into the relevant fields

To add Harmony to MetaMask instantly, click on the orange button.

Harmony

Chain ID

1666600000

Token

ONE

Block explorer

https://explorer.harmony.one

RPC URL

https://1rpc.io/one

Add to MetaMask

Privacy-protected Harmony RPC endpoint

Fully attested on-chain RPC relay with privacy guarantees, not assumptions.

Verifiable trust

1RPC is the first and only Web3 RPC relay with infrastructure that is fully attested on-chain. Anyone can verify its integrity by assessing the relay‘s hardware and software components.

Phishing protection

Transaction sanitizers are anti-phishing toggles that defend against phishing attacks to prevent loss of user funds. These rules can be added and edited at any time on the 1RPC dashboard.

Zero-tracking privacy

What‘s private stays private. Burn after relaying wipes all metadata after request is done. True zero-tracking means we don‘t (and are unable to) store or collect your personal data.

Custom API access

Generate a unique API key that spins up RPC endpoints across $57+ chains supported on 1RPC. Customizable keys allow users to define their own permissions, providing greater control over features and access levels.

Explore RPC endpoints across Web3

1RPC supports over 57+ networks, including major chains such as Ethereum, Polygon, Base, and more.

Kroma

Chain ID

255

Token

ETH

Block explorer

https://kroscan.io

RPC URL

https://1rpc.io/kroma

Add to MetaMask

Automata

Chain ID

65536

Token

ATA

Block explorer

https://explorer.ata.network

RPC URL

https://1rpc.io/ata

Add to MetaMask

Kaia

Chain ID

8217

Token

KLAY

Block explorer

https://kaiascan.io

RPC URL

https://1rpc.io/klay

Add to MetaMask

What is a RPC?

RPC stands for Remote Procedure Call enables interactions within a decentralized network. There are 2 components: an RPC node, which allows applications, including crypto wallets, to connect with the blockchain, and the RPC endpoint, which is a URL that acts as the gateway for accessing the functionalities of a blockchain through an RPC.

How is my wallet protected with 1RPC?

1RPC is a lightweight RPC relay that protects your blockchain interactions by eradicating metadata exposure and leakage. When connecting your wallet like MetaMask to 1RPC, personally identifiable information is decoupled from the wallet address to preserve your data privacy.

How do I add Harmony to my wallet?

With most crypto wallets, you can easily add a new network by navigating to the Network Settings section. Copy and add the details, including the 1RPC URL, the network Chain ID and other details. MetaMask users can add the network to the wallet with just a single click on our site.