Build with AI

Connect AI agents and coding tools to the Etherscan API across 60+ chains, with MCP, a CLI, and skills.

Give your AI agents and coding assistants direct access to onchain data through the same API that powers etherscan.io, across all 60+ supported chains.

New to the API? Create an API key to get started. Chain availability and endpoint access depend on your API plan.

Core tools

Etherscan MCP

Tool-based, authenticated API access for chat agents like Claude and ChatGPT.

Etherscan CLI

Query the API from the terminal, scripts, and CI, with structured output.

Etherscan Skills

Installable agent skills that teach agents to work with onchain data through Etherscan.

Etherscan Flow

A skill to trace, verify, and visualize onchain money flows into a case file.

Use in AI apps

Add Etherscan to a chat app in one click, with no API key.

ChatGPT Plugin

Install the Etherscan plugin from ChatGPT’s plugin directory.

Claude Connector

Add the Etherscan connector from Claude’s connector directory.

Machine-readable docs

Point an agent straight at the docs: load llms.txt for the index or llms-full.txt for the full export, or append .md to any page URL. For an agent that searches as it works, connect the Docs MCP to query these docs directly over MCP.