# Linea

**Canonical:** https://apis.io/providers/linea/  
**Website:** https://linea.build  
**APIs profiled:** 4

Linea is ConsenSys' ZK-EVM Layer 2 network built on Ethereum, offering low fees, fast finality, and full EVM compatibility. Developers access on-chain data through three complementary API surfaces: a public JSON-RPC endpoint (rpc.linea.build) supporting all standard Ethereum methods plus Linea-specific extensions (linea_estimateGas, linea_getProof), a REST Token API (token-api.linea.build) for ERC-20 token metadata and price history, and the Lineascan block explorer API (Etherscan V2-compatible) for transactions, blocks, addresses, token transfers, event logs, and contract verification across Linea Mainnet (chainId 59144) and Sepolia testnet (chainId 59141).

## Kin Score — 47.4 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 47.4).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 63.3 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 42.9 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 24.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | na |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (4)

- **Linea JSON-RPC API** — Standard Ethereum JSON-RPC API plus Linea-specific extensions available at the public endpoint rpc.linea.build. Supports all eth_* methods (eth_blockNumber, eth_getBlockByNumber...
- **Linea Explorer API (Lineascan / Blockscout)** — Blockchain data APIs for Linea Mainnet backed by two explorer surfaces. The Lineascan (lineascan.build) explorer uses the Etherscan API V2 interface (chain ID 59144) with module...
- **Linea Prices API** — Token price history
- **Linea Tokens API** — ERC-20 token metadata and information

## Agentic access (1)

- **Linea Agentic Access** — 4 operations

## Security (2)

- **Linea Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Linea Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Linea Plans**

## Use cases (6)

- **DeFi application development** — Query token balances, prices, and swap activity to power DEX front-ends, yield dashboards, and portfolio trackers on Linea.
- **Smart contract deployment and verification** — Deploy EVM contracts using standard tooling and verify source code via the Lineascan API for public transparency.
- **Transaction monitoring** — Track address activity, internal transactions, and ERC-20 transfers in real time for wallets, compliance, and analytics.
- **Gas cost optimization** — Use linea_estimateGas to accurately budget L1+L2 costs before submitting transactions, avoiding under-gas failures.
- **Token analytics** — Pull token holder lists, supply data, price history, and security scores to build on-chain analytics and due-diligence tools.
- **Cross-chain bridge monitoring** — Track deposit and withdrawal transactions across the Linea canonical bridge to Ethereum mainnet.

## Tags

Blockchain, Ethereum, Layer 2, zkEVM, Web3, DeFi, Smart Contracts, JSON-RPC, Tokens, ConsenSys

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/linea/). Scores are computed from the provider's own public artifacts under a published rubric.