How to use the Polygon Bridge to cross-chain?

Everything you need to know about bridging from Polygon (Matic)

The native chain “gas” token on Polygon is Matic. All transactions on Polygon are paid in Matic. This includes bridging “cross-chain” transactions to the other chains “networks”.

When you bridge from Polygon to another chain, a small faucet “gas token” will be airdropped  for your first transaction on the destination chain.

How to Bridge “native” USDC stable coins from Polygon to other chains?

When you bridge native USDC from Polygon to another chain you will get the native USDC on the destination chain. You can verify the contracts on the other destination chains. Currently the following bridges are supported for bridging native USDC:

  • Bridge Polygon => Ethereum
  • Bridge Polygon => BSC
  • Bridge Polygon =>  Avalanche

For Example: 

If you bridge xx amount of USDC from Polygon (USDC contract on Polygon 0x2791bca1f2de4661ed88a30c99a7a9449aa84174) => Avalanche.

You will receive the same xx amount of USDC on Avalanche (USDC.e contract on avalanche 0xa7d7079b0fead91f3e65f86e8915cb59c1a4c664).

What is Polygon (Matic)?

Polygon is formaly known as Matic. Ethereum’s Internet of Blockchains
Polygon is a protocol and a framework for building and connecting Ethereum-compatible blockchain networks. Aggregating scalable solutions on Ethereum supporting a multi-chain Ethereum ecosystem.

Polygon solves pain points associated with Blockchains, like high gas fees and slow speeds, without sacrificing on security.

  • One-click deployment of preset blockchain networks
  • Growing set of modules for developing custom networks
  • Interoperability protocol for exchanging arbitrary messages with Ethereum and other blockchain networks
  • Modular and optional “security as a service”
  • Adaptor modules for enabling interoperability for existing blockchain networks

 

How to configure MetaMask for Polygon?

You have 2 options to configure MetaMask for using the Polygon chain “network”:

  1. Automatic by selecting the Polygon chain in the RelayChain bridge app. This will import the network settings into metamask.
  2. Manually by adding the following Polygon network settings to Metamask:

          Network Name:  Polygon Network
          New RPC URL: https://polygon-rpc.com/
          Chain ID: 137
          Currency Symbol: MATIC
          Block Explorer URL:  https://polygonscan.com

 

Polygon Bridge – able tokens per destination chain

Polygon Bridge Destination chains Tokens Contracts on Polygon Matic Partners with liquidity
Avalanche | Moonriver | Shiden | Harmony | Cronos AVAX 0x2C89bbc92BD86F8075d1DEcc58C7F4E0107f286b Quickswap | Sushiswap
Avalanche | Moonriver | Shiden | Cronos MAI 0xa3fa99a148fa48d14ed51d610c367c61876997f1 Quickswap
All Chains RELAY 0x904371845Bc56dCbBcf0225ef84a669b2fD6bd0d Quickswap | Crystl.Finance
Moonriver | Shiden | Cronos wMATIC 0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270 Quickswap
Cronos CRYSTL 0x76bF0C28e604CC3fE9967c83b3C3F31c213cfE64 Crystl.Finance
Cronos wCRO 0xf2D8124b8F9267DaD61351c7aD252362880C6638 Quickswap
Binance Smart Chain BNB 0x5c4b7CCBF908E64F32e12c6650ec0C96d717f03F Quickswap
Fantom | Shiden | Harmony FTM 0xb85517b87bf64942adf3a0b9e4c71e4bc5caa4e5 Quickswap
Cronos POLYDOGE 0x8a953cfe442c5e8855cc6c61b1293fa648bae472 Quickswap
Heco HT 0xA731349fa468614c1698fc46ebf06Da6F380239e Quickswap
Ethereum | BSC | Avalanche “native” USDC 0x2791bca1f2de4661ed88a30c99a7a9449aa84174 Quickswap | Crystl.Finance |Sushiswap