Linea
Linea is an Ethereum zkEVM Layer 2 developed by Consensys, offering full Ethereum equivalence under a zero-knowledge proving system that finalizes state to Ethereum L1. Linea mainnet runs at chain ID 59144 with public JSON-RPC at rpc.linea.build, and a Sepolia testnet at chain ID 59141 at rpc.sepolia.linea.build. Developer surfaces include Linea-specific JSON-RPC extensions (linea_estimateGas, linea_getProof), the Linea SDK, the canonical Linea Bridge, Lineascan block explorer, the Linea POH/attestation system, and a published Linea Stack for deploying Linea-equivalent chains.
Linea publishes 10 APIs on the APIs.io network. Tagged areas include Blockchain, Layer 2, Ethereum, zkEVM, and EVM Equivalence.
Linea’s developer surface includes documentation, getting-started guide, API reference, GitHub presence, support, engineering blog, status page, and 11 more developer resources.
APIs
Linea Mainnet JSON-RPC
Public Ethereum-compatible JSON-RPC endpoint for Linea mainnet (chain ID 59144). Supports the standard eth_* method set plus Linea-specific extensions such as linea_estimateGas ...
Linea Sepolia Testnet JSON-RPC
Public JSON-RPC endpoint for the Linea Sepolia testnet (chain ID 59141), used for application development, prover-changes testing, and bridge integration before deploying to mai...
Linea-Specific JSON-RPC Methods
Linea custom JSON-RPC methods including linea_estimateGas (returns recommended gas limit, base fee, and priority fee accounting for L1 verification costs) and linea_getProof. Do...
Linea SDK
Official TypeScript SDK for interacting with Linea — message-service helpers, bridge claim flows, and L1/L2 utility methods used by app developers and bridge integrators.
Linea Bridge
Canonical Ethereum-Linea bridge for ETH and supported ERC-20 tokens, built on Linea's message service. UI lives at bridge.linea.build.
Lineascan Block Explorer
Etherscan-style block explorer for Linea mainnet — transactions, blocks, contracts, tokens, batches, and Solidity source verification.
Lineascan Sepolia Testnet Explorer
Lineascan instance for the Linea Sepolia testnet, supporting transaction lookup and contract verification for testnet deployments.
Linea Stack
Linea Stack lets infra teams deploy and operate their own Ethereum-equivalent network using the Linea protocol — sequencer, prover, and message-service components.
Linea Proof of Humanity
Linea POH (Proof of Humanity) attestation system used by ecosystem dApps for sybil-resistant identity, queried by contract or via attestation services.
Linea Ecosystem Directory
Public directory of dApps, infrastructure providers, wallets, indexers, and services building on Linea — surfaces partner integrations developers can plug into.