This page will help you get started with Linea API.
Here are the articles in this sections:
eth_getBlockTransactionCountByHash
eth_getBlockTransactionCountByNumber
eth_getTransactionByBlockHashAndIndex
eth_getTransactionByBlockNumberAndIndex
eth_getUncleByBlockNumberAndIndex
eth_getUncleByBlockHashAndIndex
eth_getUncleCountByBlockNumber