> For the complete documentation index, see [llms.txt](https://docs.bool.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bool.network/evm-ecosystem/technical-reference/chain-ids.md).

# Chain IDs

### Mainnet

#### EVM-compatible chains

Ethereum: `1`

Optimism: `10`

Binance Smart Chain: `56`

Polygon PoS: `137`

zkSync Era: `324`

Polygon zkEVM\*: `1101`

BEVM: `1501`

Base: `8453`

Arbitrum One: `42161`

Avalanche C-Chain: `43114`

Linea: `59144`

#### Non EVM-compatible chains

Bitcoin Mainnet: `2693367830`

### Testnet

#### EVM-compatible chains

Ethereum Goerli: `5`

BSC Chapel: `97`

zkSync Goerli: `280`

Optimism Goerli: `420`

BEVM Testnet: `1502`

opBNB Testnet: `5611`

Avalanche Fuji: `43113`

Linea Goerli: `59140`

Polygon Mumbai: `80001`

Base Goerli: `84531`

Nautilus Proteus: `88002`

Filecoin Calibration: `314159`

Arbitrum Goerli: `421613`

Scroll Sepolia: `534351`

Ethereum Sepolia: `11155111`

#### Non EVM-compatible chains

Bitcoin Testnet3: `271847360`

Solana Testnet\*: `1134131222`

SUI Testnet\*: `1918346523`

{% hint style="info" %}
The team is working on supporting Starknet and more non-EVM blockchains, including Polkadot, Near, etc.
{% endhint %}


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