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Harmony Devnet Shard 0

Harmony Devnet Shard 0

An EVM-compatible blockchain devnet for Harmony’s Shard 0, offering ~2-second finality and ultra-low fees via Effective Proof-of-Stake and sharding, using ONE.

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Chain Overview

Info

www.harmony.one

Chain ID

Native Token

ONE (ONE)

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

AI

Read and write onchain via natural language

Frequently asked questions

Harmony Devnet Shard 0 is the primary EVM-compatible shard where most Harmony mainnet activity and liquidity settle in ONE, making it the default target for dApps, wallets, and cross-chain bridges. It delivers ~2-second blocks with fast finality, average gas prices around 1–2 gwei (simple transfers ~0.00002–0.0001 ONE; typical contract calls ~0.0002–0.001 ONE), and practical capacity in the hundreds of TPS—ideal for realistic testing and low-cost deployments. Building on Shard 0 ensures the best RPC coverage, indexers, and Ethereum tooling compatibility.

Harmony Devnet Shard 0 uniquely combines sharding architecture with Effective Proof-of-Stake (EPoS) and FBFT consensus to achieve ~2s finality, low variance, and consistently low gas fees. Compared to typical L1s, it sustains hundreds of TPS with sub-cent costs (≈0.00002–0.001 ONE per tx) and concentrates network activity, liquidity, and validator security on a single canonical shard for maximum EVM tool and bridge compatibility. This results in a high-throughput, low-cost, Ethereum-tooling-native environment for cross-chain settlement and production-grade testing.

Harmony Devnet Shard 0 uses ONE as the gas token for transaction fees. You can obtain ONE by bridging from other chains or purchasing using thirdweb Bridge.

To bridge ONE to Harmony Devnet Shard 0, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Harmony Devnet Shard 0 as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.

To build on Harmony Devnet Shard 0 you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.

To add Harmony Devnet Shard 0 to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.

To send ONE on Harmony Devnet Shard 0, ensure your wallet is connected to the Harmony Devnet Shard 0 network, enter the recipient's address, specify the amount of ONE to send, review the gas fee, and confirm the transaction in your wallet.

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Harmony Devnet Shard 0

Chain Overview

Info

Chain ID

Native Token

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

Wallets

Tokens

AI

HTTP API

Frequently asked questions

Harmony Devnet Shard 0

Chain Overview

Info

Chain ID

Native Token

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

Wallets

Tokens

AI

HTTP API

Frequently asked questions

What is Harmony Devnet Shard 0 and what are its primary use cases?

What makes Harmony Devnet Shard 0 unique compared to other blockchain networks?

What is the gas token used for Harmony Devnet Shard 0, and how to get it?

How to bridge to Harmony Devnet Shard 0 network?

How to build on Harmony Devnet Shard 0 network?

How to add Harmony Devnet Shard 0 network to wallet?

How to send or receive ONE on the Harmony Devnet Shard 0 network?