Basescan

name: Basescan
description: Base L2 blockchain explorer with a REST API for querying Base network transactions, token balances, smart contract
  ABIs, ERC-20 transfer events, gas prices, and block data. Powered by the Etherscan team and migrated to the unified Etherscan
  API V2 platform, enabling access to 50+ EVM chains with a single API key using chain ID 8453 for Base.
image: https://basescan.org/images/brandassets/basescan-logo-circle.png
tags:
- blockchain
- Base
- L2
- explorer
- Ethereum
- EVM
- transactions
- tokens
- smart contracts
created: '2026-06-13'
modified: '2026-06-13'
url: https://raw.githubusercontent.com/api-evangelist/basescan/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- name: Basescan API
  description: REST API for querying Base L2 blockchain data including account balances, transactions, token transfers, smart
    contract ABIs, gas prices, block information, and event logs. Powered by Etherscan V2 with chain ID 8453 for Base network.
  humanURL: https://docs.basescan.org
  baseURL: https://api.basescan.org/api
  tags:
  - accounts
  - transactions
  - tokens
  - contracts
  - blocks
  - gas
  - logs
  properties:
  - type: Documentation
    url: https://docs.basescan.org
  - type: OpenAPI
    url: https://raw.githubusercontent.com/api-evangelist/basescan/refs/heads/main/openapi/openapi.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/basescan/refs/heads/main/plans/plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/basescan/refs/heads/main/rate-limits/rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/basescan/refs/heads/main/finops/finops.yml
  - type: Signup
    url: https://basescan.org/register
  - type: Login
    url: https://basescan.org/login
  - type: Keys
    url: https://basescan.org/myapikey
  - type: StatusPage
    url: https://etherscan.freshstatus.io
  - type: FAQ
    url: https://info.basescan.org
  contact:
  - FN: Basescan Support
    url: https://info.basescan.org
    email: ''
  meta:
  - name: chainId
    value: '8453'
  - name: network
    value: Base (L2)
  - name: compatibleWith
    value: Etherscan API V2
common:
- type: Authentication
  url: https://basescan.org/myapikey
- type: Plans
  url: https://etherscan.io/apis?id=8453
- type: PrivacyPolicy
  url: https://etherscan.io/privacyPolicy
- type: TermsOfService
  url: https://etherscan.io/terms
- type: Blog
  url: https://info.basescan.org
- type: Support
  url: https://info.basescan.org
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com