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RPC Endpoints
List of RPC endpoint URLs
These are public RPC URLs available on each network.
It's important to note that public RPC URLs generally have rate limits, so they may not be reliable 100% of the time.
For the Hop Node, it is highly recommmend to use custom RPC endpoints from an RPC provider service such as Infura or Alchemy.
Check out https://chainlist.org/ as an easy way to connect wallet and add network to your wallet.
Note: the Infura project ID in the examples below is the default that ethersjs uses.

Mainnet

Ethereum

Chain ID: 1
URL
https://mainnet.infura.io/v3/84842078b09946638c03157f83405213
https://cloudflare-eth.com

Polygon

Chain ID: 137
URL
https://polygon-rpc.com (recommended)
https://rpc-mainnet.matic.network
https://rpc-mainnet.maticvigil.com
https://rpc-mainnet.matic.quiknode.pro

Gnosis Chain (formerly xDai)

Chain ID: 100
URL
https://rpc.gnosischain.com (recommended)
https://xdai-archive.blockscout.com
https://rpc.ankr.com/gnosis
https://gnosischain-rpc.gateway.pokt.network
https://gnosis-mainnet.public.blastapi.io

Optimism

Chain ID: 10
URL
https://mainnet.optimism.io
Using an Alchemy RPC url is recommended instead of the public url. Set up here.

Arbitrum

Chain ID: 42161
URL
https://arb1.arbitrum.io/rpc
Using an Alchemy RPC url is recommended instead of the public url. Set up here.

Kovan

Ethereum

Chain ID: 42
URL
https://kovan.infura.io/v3/84842078b09946638c03157f83405213

Gnosis Chain (formerly xDai)

Chain ID: 77
URL
https://sokol.poa.network

Optimism

Chain ID: 69
URL
https://kovan.optimism.io

Arbitrum

Arbitrum is not supported on Kovan

Polygon

Polygon is not supported on Kovan

Goerli

Ethereum

Chain ID: 5
URL
https://goerli.infura.io/v3/84842078b09946638c03157f83405213

Polygon

Chain ID: 80001
URL
https://matic-testnet-archive-rpc.bwarelabs.com

Gnosis Chain (formerly xDai)

Gnosis Chain is not supported on Goerli

Optimism

Optimism is not supported on Goerli

Arbitrum

Arbitrum is not supported on Arbitrum

Rinkeby

Ethereum

Hop is not supported on Rinkeby

Polygon

Hop is not supported on Rinkeby

Gnosis Chain (formerly xDai)

Hop is not supported on Rinkeby

Optimism

Hop is not supported on Rinkeby

Arbitrum

Hop is not supported on Rinkeby
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Mainnet
Ethereum
Polygon
Gnosis Chain (formerly xDai)
Optimism
Arbitrum
Kovan
Ethereum
Gnosis Chain (formerly xDai)
Optimism
Arbitrum
Polygon
Goerli
Ethereum
Polygon
Gnosis Chain (formerly xDai)
Optimism
Arbitrum
Rinkeby
Ethereum
Polygon
Gnosis Chain (formerly xDai)
Optimism
Arbitrum