> For the complete Linea documentation index, see [llms.txt](/llms.txt). > Agents can fetch this page as Markdown at [https://docs.linea.build/network/build/tools/libraries/ethereum-list.md](https://docs.linea.build/network/build/tools/libraries/ethereum-list.md). # ethereum-lists/chains # `ethereum-lists/chains` Linea Mainnet and Linea Sepolia are listed on the official `ethereum-lists/chains` repository that is pulled by many cross-chain projects like Chainlist.org, Thirdweb, and Cookbook.dev. You can access different key parameters for the Linea chains, such as: 1. `chainId` 2. RPC Endpoints 3. Native currency settings 4. Block explorers 5. ENS information 6. Network icons See the official repo here: - [Linea Mainnet](https://github.com/ethereum-lists/chains/blob/master/_data/chains/eip155-59144.json) - [Linea Sepolia](https://github.com/ethereum-lists/chains/blob/master/_data/chains/eip155-59141.json)