ChainID LookUp

This document serves as a centralized source of information about supported Ethereum Virtual Machine (EVM)-compatible chains, spanning both mainnets and testnets for this library. EVM chains allow smart contracts written in Solidity or Vyper to be deployed and executed across diverse blockchain networks without modification. This unified structure has paved the way for seamless multi-chain dApp deployment, enabling developers to tap into the strengths and communities of various blockchains while reusing much of their codebase.

The table below lists supported chains, categorized by their unique chainId and name. This is essential for wallet and RPC configuration, bridging strategies, gas estimation, and network switching in front-end applications.

These configurations include:

• chainId: A unique identifier for each EVM-compatible blockchain, used in JSON-RPC calls and wallet providers.

• name: Human-readable network name.

• (In code) Additional metadata like native currency symbol, RPC endpoint, and block explorer are also configured but excluded here for simplicity because it is already configured in the library.

🔗 Table: EVM-Compatible Chain IDs and Network Names

✅ Mainnets Supported:

Chain ID	Name
1	Ethereum
56	BNB Smart Chain
137	Polygon
42161	Arbitrum
10	Optimism
43114	Avalanche
250	Fantom
324	zkSync Era
59144	Linea Mainnet
8453	Base Mainnet
534352	Scroll Mainnet
5000	Mantle Mainnet
40	Telos EVM Mainnet
1088	Metis Andromeda
288	Boba Network
8217	Klaytn Mainnet Cypress
66	OKExChain Mainnet
4689	IoTeX Mainnet
57	Syscoin Mainnet
199	BitTorrent Chain Mainnet
11297108109	Palm Mainnet
122	Fuse Mainnet
361	Theta Mainnet
246	Energy Web Chain
106	Velas EVM Mainnet
30	RSK Mainnet
820	Callisto Mainnet
888	Wanchain
52	CoinEx Smart Chain Mainnet
24	KardiaChain Mainnet
365	Theta Testnet (misnamed under mainnets)

✅ Testnets Supported:

Chain ID	Name
97	BSC Testnet
11155111	Ethereum Sepolia
43113	Avalanche Fuji C-Chain
4002	Fantom Testnet
421614	Arbitrum Sepolia
11155420	Optimism Sepolia
84532	Base Sepolia
300	zkSync Era Testnet
59144	Linea Sepolia Testnet
534351	Scroll Sepolia Testnet
338	Cronos Testnet
59902	Metis Sepolia Testnet
331	Telos zkEVM Testnet
11297108099	Palm Testnet
44787	Celo Alfajores
1287	Moonbase Alpha
1313161555	Aurora Testnet
1666700000	Harmony Testnet Shard 0
2221	Kava EVM Testnet

💡 Note: The chain IDs listed above represent the networks currently supported by this library. If your desired network isn’t included, feel free to email me at [e-mail] with the network name.