Etherscan MCP Server

MCP server for Etherscan. Agent-ready API for Etherscan.

Hosted at etherscan-api.mcp.junct.dev/mcp. Free to use. No auth. No API key required.

Part of Junct — the agent-readiness layer for web3.

Quick Start

Add to your MCP client config (Claude Desktop, Cursor, Windsurf):

{
  "mcpServers": {
    "etherscan-api": {
      "url": "https://etherscan-api.mcp.junct.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

About

This MCP server is deterministically generated from the Etherscan API specification. Every tool maps 1:1 to a real API endpoint — no hallucinated endpoints.

• Protocol: Etherscan
• Endpoint: https://etherscan-api.mcp.junct.dev/mcp
• Transport: Streamable HTTP
• Auth: None required
• Documentation: etherscan-api.mcp.junct.dev/llms.txt

Links

• Junct Dashboard
• llms.txt
• agents.md
• OpenAPI spec

Keywords: Etherscan, MCP server, DeFi, AI agent, agent-ready API, crypto tools, Model Context Protocol