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Etherscan Compatible API

The Etherscan Compatible API provides functionality aligned with Etherscan's standards, enabling efficient access to blockchain data, including transactions, blocks, and smart contract information.

Key Features​

  • Compatibility: Fully compatible with Etherscan's standard API.
  • Ease of Use: Intuitive request structure and response format.
  • Security: API key authentication and rate limiting for users.

Basic Information​

API Endpoints​

EnvironmentBase URL
Productionhttps://mainnet-oapi.kaiascan.io/api
Testhttps://kairos-oapi.kaiascan.io/api

Authentication​

By default, you can make up to 10 API calls per second without an API key.
To increase this limit, request an API key by emailing support@kaiascan.io.
The API key provided is specifically for the Etherscan Compatible API, ensuring optimized access for Etherscan-compatible operations.

Note: API keys obtained directly from the website cannot be used with the Etherscan Compatible API.

Example Request Header​

GET /api?module=account&action=balance&address=0x123...&apikey=YourApiKeyHere HTTP/1.1
Host: https://mainnet-oapi.kaiascan.io/api