Harmony launched its mainnet in 2019 as a sharded proof-of-stake network designed to run Ethereum applications at lower cost. It splits work across multiple shards and uses a delegation-based staking model to secure each one. Here is how it works and what it is used for, not the price.
Total value locked (DeFi)
$233,869
Value locked in DeFi protocols on Harmony. Updated Jun 8, 2026. Source: DefiLlama.
Harmony secures its network with Effective Proof of Stake, a staking design built for a sharded chain. Token holders stake ONE or delegate it to validators, who are spread across shards so that each shard carries a comparable amount of stake. EPoS adjusts rewards so that very large validators are pushed to run additional nodes rather than concentrate stake, and double-sign behavior can be slashed.
Consensus: Effective Proof of Stake (EPoS)
Harmony secures its network with Effective Proof of Stake, a staking design built for a sharded chain. Token holders stake ONE or delegate it to validators, who are spread across shards so that each shard carries a comparable amount of stake. EPoS adjusts rewards so that very large validators are pushed to run additional nodes rather than concentrate stake, and double-sign behavior can be slashed.
Sharding
Harmony divides state, network, and transaction processing across multiple shards so they can produce blocks in parallel rather than one global chain handling everything.
EVM compatibility
The network runs Ethereum-style smart contracts, so contracts and tooling written for the EVM can be deployed on Harmony with familiar workflows.
ONE token
ONE is the native token. It pays transaction fees and is staked or delegated to validators to help secure the shards and earn staking rewards.
Epochs
Time on Harmony is grouped into epochs of a fixed number of blocks. Validator sets and shard assignments are updated at epoch boundaries.
Ecosystem & usage
What Harmony is used for.
Harmony hosts EVM-based decentralized applications, token contracts, and cross-chain tools built on its sharded design.
Harmony is a Layer 1 blockchain that launched its mainnet in 2019. It uses sharding and Effective Proof of Stake to run Ethereum-compatible smart contracts across multiple shards.
What is the ONE token used for?
ONE is the native token of Harmony. It pays transaction fees and is staked or delegated to validators that secure the network.
Is Harmony compatible with Ethereum tools?
Yes. Harmony is EVM-compatible, so smart contracts and tooling designed for the Ethereum Virtual Machine can be used on it.
How does staking work on Harmony?
Holders can stake ONE or delegate it to a validator. Under Effective Proof of Stake, stake is distributed across shards and validators can earn rewards or be slashed for double-signing.
Can I hold ONE in Zypto App?
Not yet. ONE isn't in Zypto App at the moment. You can hold it in any self-custodial wallet, and you can ask us to add Harmony using the "Request Harmony" button above.
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