Optimism Etherscan · Authentication Profile

Optimistic Etherscan Authentication

Authentication

Optimism Etherscan secures its APIs with apiKey across 1 declared security scheme, as derived from its OpenAPI definitions.

BlockchainOptimismLayer 2EthereumEVMWeb3Cryptocurrency
Methods: apiKey Schemes: 1 OAuth flows: API key in: query

Security Schemes

apiKeyAuth apiKey
· in: query (apikey)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/optimistic-etherscan-openapi.yml
summary:
  types:
  - apiKey
  api_key_in:
  - query
schemes:
- name: apiKeyAuth
  type: apiKey
  in: query
  parameter: apikey
  description: Etherscan API key obtained from https://optimistic.etherscan.io/myapikey. The
    free tier supports select chains with 3 req/s and 100k req/day. Paid plans start at $49/month
    for full multichain access.
  sources:
  - openapi/optimistic-etherscan-openapi.yml