How to Bridge Crypto from Polygon to Harmony

Summary: In this guide, we outline the fastest and most affordable way for Australian investors to bridge cryptocurrencies from Polygon to Harmony One. To bridge between any networks you will need to use a secure bridging protocol, we recommend using Synapse protocol.

Serah Huels
June 24, 2022
Verified Author

The Polygon Mainnet (MATIC) is a blockchain network that enables users to transact and interact with digital assets and applications. Polygon is a second-layer scaling solution for Ethereum. Polygon's native token is called MATIC and it is used to power the network. It is an EVM-compatible network and uses the same programming language, Solidity.

Harmony One was created to provide a more scalable and efficient blockchain solution to other networks. It uses a unique consensus mechanism called sharding, which allows it to process more transactions per second than other cryptocurrencies. Harmony one is also working on innovative solutions to address the scalability issues of the Ethereum blockchain.

Table of Contents

Can I bridge Crypto from the Polygon Mainnet to Harmony One?

Yes, there are three bridging protocols that allow bridging between these two networks, Synapse Protocol, SpookySwap and Allbridge. Below we will highlight what bridging options you have available on each platform.

Synapse Protocol allows users to bridge directly between both chains, has 5 bridging tokens and takes under a minute to complete bridging.
SpookySwap doesn't allow direct bridging, you will need to transfer your assets from Polygon to Fantom and then Fantom to Harmony One, making it a longer and more expensive process.
Allbridge allows direct bridging between the networks but only allows users to bridge their native token ABR. In addition to having one token, the bridging process takes 30 minutes to complete.

We recommend using Synapse Protocol as if offers the fastest bridging speeds, lowest fees and largest selection of bridging tokens.

Synapse Home Page
Synapse Home Page

How to bridge Cryptocurrencies from Polygon to Harmony One?

In the below example we use USDC as the bridging token but you may also send USDT, DAI, SYN & nUSD. Follow the steps to begin bridging your tokens from the Polygon Mainnet to the Harmony One network.

  1. Go to Synapse Protocol and connect your Metamask Web3 wallet
  2. Select Polygon & Harmony as your two networks
  3. Input the amount of USDC you want to bridge
Bridge USDC From Polygon to Harmony - Synapse
  1. Confirm the transactions in your Metamask and the funds will arrive within a minute
Bridge USDC From Polygon to Harmony
Bridge USDC From Polygon to Harmony

Harmony One & Polygon RPC Details for Metamask

Below you can find the RPC details for the Polygon Mainnet and Harmony One network. To add these chains to your web3 wallet, simply click 'Add Networks' in your networks dropdown menu on Metamask and fill in the details as per below:

  • Network Name: Harmony Mainnet
  • New RPC URL:
  • Chain ID: 1666600000
  • Currency Symbol: ONE
  • Block Explorer URL:

Bridging Fees: Polygon to Harmony

Bridging between any networks can be pretty expensive, but not on Synapse Protocol. Synapse is one of the few DEXs (decentralised exchange) that offers fast and affordable bridging. The total cost to bridge cryptocurrencies from the Polygon network to Harmony one is around $5AUD.

If that's too high, you can opt out the bridging token for SYN (the native token of Synapse) and you will be guaranteed 0% slippage and a small 1SYN bridging fee. In total costing around $3AUD to bridge. Synapse offers 0% slippage and low fees when users send SYN as they want to incentivise investors to buy its native token. If you want to buy SYN you can get it on SushiSwap.

Is Synapse Protocol safe?

Synapse protocol is considered one of the safest bridging protocols and that can be backed by its impressive $10B in bridging volume. Which speaks for itself and backs the security of the protocol. It is also one of the few DEXs that offer 24/7 Live Support directly through Telegram, Discord & Twitter.

Polygon to Harmony Bridge

Author Bio

Serah is our Editor in Chief and was the first person to join the Buy Crypto Australia team. She is a digital & crypto native, having been in the space since 2015.

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