Summary: The best way to bridge between Polygon (MATIC) and Harmony (ONE) network is with a secure multi-chain DEX.

We recommend the Synapse Protocol because they are the largest and most trusted DeFi bridge that allows you to swap tokens between Polygon and Harmony.

Table of Contents

How to Bridge from Polygon to Harmony One

The safest, quickest and most affordable way to bridge from the Polygon Mainnet to Harmony One is through the Synapse Protocol. They are a popular DEX (Decentralized Exchange) that offers bridging services on their platform. Simply connect your Web3 Wallet (Metamask, Wallet Connect, Coinbase Wallet & Binance Smart Chain Wallet) to Synapse and bridge with two easy steps. 

In the example below we will use SYN (the native token of Synapse) as our token but you can also send USDC, USDT & DAI. 

To get started, please follow the below guide:

  1. Visit the Synapse Protocol and connect your Metamask or Web3 Wallet
  2. Select Polygon and Harmony as your two networks
  3. Input the amount you want to bridge
  4. Confirm the transaction and your coins will be on your Metamask Wallet under the Harmony One network within a minute
Polygon to Harmony One Bridge - Synapse

Polygon to Harmony One Fees

The fees to bridge from Polygon and Harmony One are significantly cheaper than bridging from Ethereum to one of these networks. The costs to bridge from Polygon to Harmony One come to about $5USD in total. Synapse offers the lowest fees and slippage among any bridging protocol in the world. You would generally pay around $10 - $15USD to bridge on other DEXs or bridging protocols. 

It is even more affordable if you use their native token SYN to bridge between networks as they offer 0% slippage and a small 1 SYN transaction fee. We recommend using SYN to bridge between networks. You can easily purchase SYN on various DEXs such as SushiSwap or Trader Joe. 

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Harmony One RPC Information

If you haven’t already added Harmony One to your Metamask wallet, you can follow the below guide to connect to the Harmony One network. 

  1. Click on your Metamask Wallet and go to ‚ÄėNetworks‚Äô
  2. Find ‚ÄėAdd Network‚Äô at the bottom of the list
  3. You will be redirected to a page on Metamask, copy the details in the screenshot below and press ‚ÄėSave‚Äô
  4. Go back to your Metamask Wallet and you should see ‚ÄėHarmony Mainnet‚Äô under Networks
Metmask Harmony One RPC Details

Is Synapse a safe DEX for Bridging?

Synapse is widely regarded as the safest and most diverse multi-chain DEX/Bridging Protocol in the world. They have the widest selection of networks to bridge from/to, including Ethereum, Avalanche, Polygon, Harmony, DFK Chain, Terra, Arbitrum, Aurora, Boba Network, Cronos, Moonbeam, Moonriver, Optimism, BNB Chain, Fantom & Metis. 

In addition to their diverse range of networks, they also offer 24/7 Live Support via their Telegram and Discord communities. You can reach them on Twitter but it is not monitored 24/7 so we recommend trying their TG or Discord first. 

Polygon to Harmony One Bridge

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