What is a Harmony node?

A Harmony node is a computer in the Harmony blockchain network that helps validate and propagate transactions. It maintains a copy of the blockchain and participates in the consensus protocol.

How to run a Harmony node?

To run a Harmony node, you need to download the client software, set up a node configuration file, and start the node with the appropriate command-line parameters. Detailed instructions can be found in the official Harmony documentation.

What is a ONE full node?

A ONE full node is a type of node in the Harmony network that stores a complete copy of the blockchain and participates in the consensus process. It helps maintain network security and supports transaction processing.

What is an RPC in the Harmony network?

RPC in Harmony is a remote procedure call interface (communication protocol) provided by the blockchain network. It allows developers to interact with the blockchain, query data, and perform various operations programmatically.

How does Harmony API work?

Harmony API provides a set of endpoints and methods that developers can use to interact with the blockchain network. Developers can send requests to the API to perform actions such as submitting transactions, retrieving blockchain data, and accessing network information. The API acts as a bridge between applications and the underlying Harmony blockchain infrastructure.

Harmony (ONE) RPC Nodes APIsConnect your Web3 app to ONE blockchain

Name: Harmony RPC Node
Brand: GetBlock
Availability: InStock

Harmony

ONE

Your free endpoint

https://go.getblock.io/your-access-token

Access level

shared

dedicated

Networks

Mainnet

APIs & Addons

JSON-RPC

WebSocket

To start building with GetBlock create a free access token in your account

Get access to ONE RPC nodes in a few clicks

Here you can create an Harmony API endpoint for your project. With GetBlock you don’t need to know how to run ONE nodes as they are available for mainnet and testnets.

Harmony RPC method sample

Mainnet height0

Request

1

2

3

4

5

6

7

8

curl --location --request POST https://go.getblock.io/<ACCESS-TOKEN>--header 'Content-Type: application/json'--data-raw '{"jsonrpc": "2.0","method": "eth_blockNumber","params": [],"id": "getblock.io"}'

Start fast with ONE API

Deploying your DeFi protocol, crypto exchange, or Play-to-Earn application on Harmony has never been easier

STEP ONE
Get an endpoint
Create an account for free and access 100+ chains
STEP TWO
Start sending requests
Check out our docs on all available methods
STEP THREE
Manage your connection
Change packages, switch between networks, add new chains

Flexible pricing that matches your scale

Grow and scale your business whenever you need it. Try Harmony RPC provider
with the best services and plans

CU limits just increased

All shared node plans now include more CUs. No action needed.

$399 / mo , billed yearly

Save $1200/year

Compute units ?

600M 1B$0.40 / 1M CU

RPS

500

Endpoints

50

Support

24/7 (<5 min)

130+ supported chains

Archive data (Selected networks)

MEV-protection

WebSockets

SLA

Advanced analytics

Team account

Dedicated node

Private server with custom settings

Requests

Unlimited

Rate Limit

Unlimited

Data

Harmony Nodes FAQ

What is a Harmony node?
A Harmony node is a computer in the Harmony blockchain network that helps validate and propagate transactions. It maintains a copy of the blockchain and participates in the consensus protocol.
How to run a Harmony node?
To run a Harmony node, you need to download the client software, set up a node configuration file, and start the node with the appropriate command-line parameters. Detailed instructions can be found in the official Harmony documentation.
What is a ONE full node?
A ONE full node is a type of node in the Harmony network that stores a complete copy of the blockchain and participates in the consensus process. It helps maintain network security and supports transaction processing.
What is an RPC in the Harmony network?
RPC in Harmony is a remote procedure call interface (communication protocol) provided by the blockchain network. It allows developers to interact with the blockchain, query data, and perform various operations programmatically.
How does Harmony API work?
Harmony API provides a set of endpoints and methods that developers can use to interact with the blockchain network. Developers can send requests to the API to perform actions such as submitting transactions, retrieving blockchain data, and accessing network information. The API acts as a bridge between applications and the underlying Harmony blockchain infrastructure.

Harmony RPC: Why should you choose it?

Harmony is the first sharded EVM-compatible blockchain with smart contracts. It was introduced in 2018 by Stephen Tse. Mainnet operations of Harmony nodes kicked off in 2019. The platform raised initial funding through an IEO on Binance Launchpad.

Harmony leverages Effective Proof-of-Stake (EPoS) consensus as a way to address the challenges of blockchain trilemma. Unlike in classic PoS systems, it penalizes the validators for getting too much influence.
Harmony is also well-known for its developed cross-chain bridges ecosystem. ONE nodes are seamlessly connected to BNB Smart Chain (BNB), Ethereum (ETH), Bitcoin (BTC), and so on.
Thanks to the sharding system, Harmony nodes don’t need to store the full history of transactions. In total, there is a limit of 250 validators slots per shard that makes the opportunities for decentralization really impressive.

GetBlock Development API:Your perfect gateway to Web3

Focus on building with ONE RPC; GetBlock does most of the legwork
As long as you work with GetBlock’s ONE nodes, you don’t need to spend resources on servers, DevOps teams and so on: we offer ready-made blockchain nodes solutions that can be activated in minutes.
Different use cases, different ONE APIs
Our users can customize their ONE RPC nodes endpoints regardless of their previous experience with GetBlock’s intuitive interface and premium-level customer support.

Get access to ONE RPC nodes in a few clicks

Get an endpoint

Start sending requests

Manage your connection

CU limits just increased

Pro

Dedicated node

Focus on building with ONE RPC; GetBlock does most of the legwork

Different use cases, different ONE APIs