Etherscan has released a suite of tools enabling AI agents and coding assistants to access live blockchain data directly through the explorer's API. The company announced the initiative on August 31, 2026.
What Etherscan Shipped
The release provides three interfaces for machine access to Etherscan data. A Model Context Protocol (MCP) server runs at mcp.etherscan.io/mcp and exposes 20 tools that agents such as Claude and ChatGPT can call in plain language. A command-line interface (CLI) follows the API's structure with commands formatted as etherscan <module> <action>, offering JSON output by default plus table and CSV options. The suite also includes installable agent skills.
All interfaces authenticate with a standard Etherscan API key, with free keys working across every supported chain.
Core Capabilities
The tools cover fundamental blockchain data needs:
- Native and token balances
- Normal and internal transactions
- Transaction and receipt lookups
- Contract details and verification
- Gas prices and event logs
Four installable skills extend functionality: Etherscan Flow traces money movements across addresses, Etherscan Contract Review explains verified deployed contracts, a transaction debugger reconstructs transaction activity, and an orchestrator skill routes tasks to appropriate interfaces. According to Etherscan's documentation, "every address, amount, and transaction hash comes from a live API call, never invented." The suite is read-only and respects standard API quotas and rate limits.
Addressing AI Hallucinations
The release addresses a known problem in AI applications: language models can fabricate wallet balances or transactions that never occurred. Etherscan's verified data approach ensures AI agents access accurate onchain information rather than generating false data.
Etherscan also warned users not to paste API keys into fraudulent MCPs posing as legitimate services, noting that only one official MCP server exists.
Context: AI Traffic Growth
The initiative comes as AI agents have significantly increased their share of internet traffic. Cloudflare data indicated that in early June, agentic bots accounted for 57.4% of web traffic against 42.6% for humans, with North America showing even higher bot percentages at 68.6%. More recent data shows bots still account for over 35% of web traffic.
