Harmony (ONE) Crypto Exchange

Access the best ONE exchange rate on ChangeNOW and perform an instant exchange. No limits, accounts or worries. Spend your time and energy on what matters — we’ll handle the rest.


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ONE Price Chart

ONE market information

Harmony Price is $0.022. Its current circulating supply is one 14,256,581,892 with a market cap of $305,333,378.09.


$ 0.022


$ 305,333,378.09

24h % PRICE

-1.75 %


$ 8,483,564.81

7d % PRICE

8.52 %


14,256,581,892 ONE

What is Harmony (ONE)

Harmony is a blockchain platform established in 2017 by Stephen Tse, who has Ph.D. in cryptographic protocols and type theory.

This project claims to have tackled the blockchain trilemma of scalability, security and decentralization by introducing sharding and staking on the mainnet. Sharding is proven to scale blockchains without compromising security and decentralization while simultaneously reducing node validation times.

Harmony has also introduced the Effective Proof-of-Stake (EPoS) that reduces centralization as it supports its stake delegation, reward compounding and double-sign slashing. Harmony aims to build an open network of nodes operated and governed by a large community. The issue of security is addressed through Verifiable Random Function (VRF) which ensures randomized assignment of validators and nodes by providing random shard memberships.

In 2020 the Foundation introduced Harmony Grants where 154.2M tokens are allocated per month for the development of the Harmony mainnet. Currently, there are 12 grantees working on their projects.

How to buy ONE

You can buy ONE on ChangeNOW with one of the 450+ cryptocurrencies or 50+ fiat currencies by following the steps below:

Pick ONE as the “You get” currency above.

Choose crypto or fiat currency to buy ONE with.

Enter your Harmony wallet address.

Send your deposit to a one-time address.

Receive your exchanged coins in approximately 5 mins!

How to sell ONE

Swap Harmony coins for one of the assets in our rich crypto selection by following the steps below:

Pick ONE as “You Send” currency above.

Choose the asset you’d like to get for your ONE.

Enter the wallet address of the coin you’d like to get.

Send your deposit to a one-time address.

Receive your exchanged coins in approximately 5 mins!

ONE to USD exchange

ChangeNOW provides for all your exchanging needs beyond crypto to crypto transactions, allowing you to buy or sell Harmony (ONE) with a bank account or a Visa/Mastercard credit card. This service also does not require registration even in the case of cashing out your ONE. With ChangeNOW you will get the best possible exchange rates, and only the required minimum amount of fees, such as network fees.

Why exchange ONE with ChangeNOW

  • ChangeNOW is a non-custodial service, and we never control, store, or hold your funds in any way.
  • Once you deposit your ONE on the address, your exchange is complete within minutes.
  • We offer Harmony exchange options along with a versatile range of other cryptocurrency assets to choose from.
  • We don’t require you to sign up, remember passwords, or go through elaborate procedures to get what’s legitimately yours.
  • We don’t believe in limiting you, your money, or your earning potential. Swap as much as you like – limits are not our thing.

Best ONE wallets


  • You can use our ONE calculator in order to check the exact amount of Harmony (ONE) you will get after the exchange is complete.

  • You can use our services to exchange Harmony (ONE) for any of the 450+ cryptocurrencies available on our website. We do not require registration, have no limits for exchanges and do not store your funds.

  • We offer two rate flows to purchase Harmony (ONE) with: classic rate and fixed rate. Classic exchange rates may fluctuate depending upon network fees, market rates, and other conditions, while fixed rate protects you from market fluctuations which is done by reserving a small amount.