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-images.s3.amazonaws.com/shared/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
  - url: graphql/base-l2-graphql.md
    type: GraphQL
- 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
- type: LLMsTxt
  url: https://docs.base.org/llms.txt
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: kin@apievangelist.com