Base

aid: base-l2
url: https://raw.githubusercontent.com/api-evangelist/base-l2/refs/heads/main/apis.yml
name: Base
kind: company
description: >-
  Base is Coinbase's Ethereum Layer 2 network built on the OP Stack and part of the
  Optimism Superchain. It exposes a standard Ethereum JSON-RPC interface for smart
  contracts and dApps, plus higher-level developer surfaces including Base Account
  (Smart Wallet, Sub Accounts, passkeys, paymaster-sponsored transactions), OnchainKit
  React components, Mini Apps, the canonical Bridge to Ethereum, and a Solana cross-
  chain bridge. Block exploration is available through BaseScan and Blockscout.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Layer 2
  - Ethereum
  - OP Stack
  - Superchain
  - JSON-RPC
  - Smart Wallet
  - Bridge
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
  - aid: base-l2:mainnet-rpc
    name: Base Mainnet JSON-RPC
    description: >-
      Standard Ethereum JSON-RPC endpoint for Base Mainnet (chain ID 8453). Supports
      eth_*, net_*, web3_*, and Optimism-specific extensions for fee estimation and
      L1 messaging. The public endpoint is rate-limited and not recommended for
      production; teams typically front it with Alchemy, QuickNode, Infura, Coinbase
      Developer Platform, or self-hosted op-geth + op-node.
    humanURL: https://docs.base.org/chain/network-information
    baseURL: https://mainnet.base.org
    tags:
      - JSON-RPC
      - Mainnet
      - EVM
    properties:
      - type: Documentation
        url: https://docs.base.org/chain/network-information
  - aid: base-l2:sepolia-rpc
    name: Base Sepolia JSON-RPC
    description: >-
      Public JSON-RPC endpoint for the Base Sepolia testnet (chain ID 84532) used for
      development, contract deployment, and integration testing.
    humanURL: https://docs.base.org/chain/network-information
    baseURL: https://sepolia.base.org
    tags:
      - JSON-RPC
      - Testnet
      - Sepolia
    properties:
      - type: Documentation
        url: https://docs.base.org/chain/network-information
  - aid: base-l2:flashblocks-rpc
    name: Base Flashblocks RPC
    description: >-
      Pre-confirmation JSON-RPC endpoint exposing Flashblocks — sub-block streams of
      ordered transactions that allow apps to react to pending state with sub-second
      latency.
    humanURL: https://docs.base.org/chain/flashblocks
    baseURL: https://mainnet-preconf.base.org
    tags:
      - Flashblocks
      - Pre-Confirmation
      - JSON-RPC
    properties:
      - type: Documentation
        url: https://docs.base.org/chain/flashblocks
  - aid: base-l2:bridge
    name: Base Bridge
    description: >-
      Canonical cross-chain bridge between Ethereum L1 and Base L2 for depositing and
      withdrawing ETH and ERC-20 tokens, secured by the OP Stack bridge contracts.
    humanURL: https://bridge.base.org
    baseURL: https://bridge.base.org
    tags:
      - Bridge
      - L1
      - L2
      - Canonical
    properties:
      - type: Documentation
        url: https://docs.base.org/chain/bridges-mainnet
      - type: App
        url: https://bridge.base.org
  - aid: base-l2:solana-bridge
    name: Base / Solana Bridge
    description: >-
      Cross-chain bridge enabling asset transfers between Base and Solana, integrated
      into the Base ecosystem app surface.
    humanURL: https://docs.base.org/chain/base-solana-bridge
    baseURL: https://docs.base.org/chain/base-solana-bridge
    tags:
      - Bridge
      - Solana
      - Cross-Chain
    properties:
      - type: Documentation
        url: https://docs.base.org/chain/base-solana-bridge
  - aid: base-l2:account
    name: Base Account / Smart Wallet
    description: >-
      Base Account (formerly Coinbase Smart Wallet) is an ERC-4337 smart contract
      wallet with passkey sign-in, sub-accounts, session keys, sponsored transactions
      via paymaster, and SDK + React component integrations.
    humanURL: https://docs.base.org/base-account
    baseURL: https://docs.base.org/base-account
    tags:
      - Smart Wallet
      - Account Abstraction
      - ERC-4337
      - Passkeys
    properties:
      - type: Documentation
        url: https://docs.base.org/base-account
      - type: Website
        url: https://www.smartwallet.dev
  - aid: base-l2:onchainkit
    name: OnchainKit
    description: >-
      React component library and TypeScript SDK (@coinbase/onchainkit) for building
      onchain apps on Base — wallet, identity, transaction, swap, checkout, fund, and
      NFT components with built-in Smart Wallet and Mini App support.
    humanURL: https://docs.base.org/onchainkit
    baseURL: https://www.npmjs.com/package/@coinbase/onchainkit
    tags:
      - SDK
      - React
      - Components
      - Onchain
    properties:
      - type: Documentation
        url: https://docs.base.org/onchainkit
      - type: Repository
        url: https://github.com/coinbase/onchainkit
  - aid: base-l2:basescan-explorer
    name: BaseScan Block Explorer
    description: >-
      Etherscan-family block explorer for Base Mainnet and Sepolia with a public
      contract / transaction / address API.
    humanURL: https://basescan.org
    baseURL: https://api.basescan.org/api
    tags:
      - Block Explorer
      - API
      - BaseScan
    properties:
      - type: Documentation
        url: https://docs.basescan.org
      - type: Website
        url: https://basescan.org
  - aid: base-l2:blockscout-explorer
    name: Base Blockscout Block Explorer
    description: >-
      Blockscout-powered open-source block explorer for Base with REST and GraphQL
      APIs.
    humanURL: https://base.blockscout.com
    baseURL: https://base.blockscout.com/api
    tags:
      - Block Explorer
      - Blockscout
      - API
    properties:
      - type: Website
        url: https://base.blockscout.com
common:
  - type: Website
    url: https://www.base.org
  - type: Documentation
    url: https://docs.base.org
  - type: GitHub
    url: https://github.com/base-org
  - type: GitHubOrganization
    url: https://github.com/base
  - type: Status
    url: https://status.base.org
  - type: Bridge
    url: https://bridge.base.org
  - type: Ecosystem
    url: https://www.base.org/ecosystem
  - type: Twitter
    url: https://x.com/base
  - type: Discord
    url: https://discord.gg/buildonbase
  - type: Blog
    url: https://base.mirror.xyz
integrations:
  - name: Ethereum
  - name: Optimism Superchain
  - name: OP Stack
  - name: Coinbase
  - name: Solana (bridge)
  - name: Alchemy
  - name: QuickNode
  - name: Infura
maintainers:
  - FN: Kin Lane
    email: [email protected]