Etherscan MCP Server

Name: Etherscan MCP Server
Author: friendlygeorge

作者：friendlygeorge版本 1.0.0i★ –i在你的电脑上运行

注册名称io.github.friendlygeorge/etherscan-mcp-server

安装

概览

作者提供的说明（英文原文）

MCP server for Etherscan — Ethereum blockchain explorer API for AI assistants

PopNx MCP 的三大支柱

这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。

用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
我们的基础检查i1 项中通过 1 项依据公开信息检查；尚未扫描代码
使用情况i尚未统计★ –

它能帮你做什么

我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。

连接方式: 在你的电脑上运行
传输方式: stdio
分类: 其他

安装

选择你使用的 AI 应用，然后复制设置。

安装之前

基础检查：1 项中通过 1 项
在你的电脑上运行，拥有你的用户账户的权限（文件、网络、应用）。
注册中心没有列出需要填写的密钥。

你需要

npm已安装 Node.js（用于 npx 命令）

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。

打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json

{
  "mcpServers": {
    "etherscan": {
      "command": "npx",
      "args": [
        "-y",
        "etherscan-mcp-server"
      ]
    }
  }
}

在终端中运行这条命令

claude mcp add etherscan -- npx -y etherscan-mcp-server

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "etherscan": {
      "command": "npx",
      "args": [
        "-y",
        "etherscan-mcp-server"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "etherscan": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "etherscan-mcp-server"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

这个服务器在你的电脑上运行，而 ChatGPT 只能连接互联网上的服务器。请选择其他应用。

你的选择通过 Cookie 保存在这台设备上，无需账户。

这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。

它能做什么

它在你的电脑上运行；安装后，工具列表会显示在你的 AI 应用中。

基础检查i

我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月6日

✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 friendlygeorge 验证，该账户拥有此仓库
… 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
… 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
– 不适用
端点有响应
它在你的电脑上运行，没有互联网端点
– 不适用
使用 OAuth 登录
在你的电脑上运行，改用本地设置
… 尚未检查
工具描述中没有隐藏指令
它在你的电脑上运行；我们只能读取互联网端点的工具列表

与“其他”中的其他服务器比较i

星标数多于此分类中其他 32466 个服务器的 0%
发布到注册中心的时间比此分类中其他 32466 个服务器的 12% 更新
基础检查结果等于或优于此分类中其他 32466 个服务器的 100%

与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。

常见问题

Etherscan MCP Server 安全吗？

它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。

它需要哪些密钥或代码？

注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。

它在我的电脑上运行还是在云端？

它在你的电脑上运行。你的 AI 应用会在需要时启动它，数据不会经过作者的服务器（除非它自己调用在线服务）。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（1.0.0）于5个月前进入注册中心。

哪些应用可以使用它？

支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。你的电脑上还需要有 Node.js。

有什么可以替代它？

同一分类中有：Spec Driven Development, Remote Desktop Commander, HotCodePush

替代选择

同一分类中其他作者的服务器，按星标数排序。

如何看卡片：★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i

Spec Driven Development

作者：formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

在你的电脑上运行★ 440MIT14个月前更新

安装

Remote Desktop Commander

作者：desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

在云端运行★ 211昨天更新

安装

HotCodePush

作者：hotcodepush-team

Manage over-the-air (OTA) updates for React Native, Expo, Capacitor and Cordova apps.

在云端运行今天更新

安装

作者的 README

打开 README

按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。

Etherscan MCP Server

An MCP server for Etherscan — connect any MCP-compatible client to the Ethereum blockchain explorer.

What is this?

An MCP (Model Context Protocol) server that gives AI assistants and agents access to Etherscan's Ethereum blockchain explorer API — ETH balances, ERC-20 token balances, transaction history, contract ABIs, and gas prices — through natural language.

Use it with Claude Desktop, Cursor, Windsurf, Cline, Continue, or any MCP-compatible client to inspect wallets, audit contracts, and analyze on-chain activity.

Why use this?

No API key required — works out of the box with Etherscan's free tier (limited to ~1 call/5s without a key)
Optional API key support — set ETHERSCAN_API_KEY for 5 calls/sec and full results
8 built-in tools — covers the most common on-chain queries
Clean markdown output — results read naturally in chat
Rate-limited automatically — respects free tier limits, retries on 429

Tools

Tool	Description
`get_eth_balance`	Get native ETH balance for an address
`get_token_balances`	Get all ERC-20 token balances for an address
`get_transaction`	Get full details for a transaction by hash
`get_transactions_by_address`	Get normal (external) transactions for an address
`get_erc20_transfers`	Get ERC-20 token transfer events for an address
`get_internal_transactions`	Get internal (contract-called) transactions for an address
`get_contract_abi`	Get the ABI for a verified smart contract
`get_gas_price`	Get current gas price oracle (slow/standard/fast in Gwei)

Quick Start

1. Add to your MCP client

Add this to your MCP client config (e.g. claude_desktop_config.json):

"mcpServers": { "etherscan": { "command": "npx", "args": ["-y", "etherscan-mcp-server"] } } }

That's it. npx downloads and runs it automatically. For higher rate limits, get a free API key at etherscan.io/apis and add it:

"mcpServers": { "etherscan": { "command": "npx", "args": ["-y", "etherscan-mcp-server"], "env": { "ETHERSCAN_API_KEY": "your_key_here" } } } }

2. Use it

Ask your AI assistant things like:

"What's the ETH balance of vitalik.eth's address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?"
"Show me the ERC-20 token balances for that address"
"Get details for transaction 0x..."
"List the last 20 normal transactions for this address"
"Show me all USDT transfers to this wallet"
"Fetch the ABI for the USDC contract 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
"What are current gas prices on Ethereum mainnet?"

Example Output

`get_eth_balance`

ETH Balance for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

247.3821 ETH

`get_gas_price`

⛽ Etherscan Gas Price Oracle

Safe Low (🐢): 12.50 Gwei
Standard (🚗): 15.20 Gwei
Fast (🚀): 18.90 Gwei

Last Block: 19850000
Gas Used Ratio: 0.512
Suggested Base Fee: 13.40 Gwei

*Estimated tx cost for 21,000 gas: 🐢 0.000263 ETH | 🚀 0.000397 ETH*

`get_transactions_by_address`

Normal Transactions for 0xd8dA...6045 (20 results, page 1)

✅ ↗ OUT 0.5 ETH · transfer — block 19,850,123 — 2026-06-05 — gas: 15.20 Gwei — hash: 0x4f8a2b9c3d1e5f7a...
✅ ↙ IN 1.2 ETH · transfer — block 19,849,876 — 2026-06-05 — gas: 14.80 Gwei — hash: 0x9c1d4e7f2a8b6c3d...
❌ ↗ OUT 0.0 ETH · swapExactTokensForETH — block 19,849,500 — 2026-06-05 — gas: 22.10 Gwei — hash: 0x2b7c9e1f4a3d8b5c...

`get_contract_abi`

Contract ABI for 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48

Functions: 28
Events: 13
Constructors: 1
Fallback/Receive: 0

Functions (showing first 25)

name() → string (view)
symbol() → string (view)
decimals() → uint8 (view)
totalSupply() → uint256 (view)
balanceOf(address) → uint256 (view)
transfer(address,uint256) → bool (nonpayable)
approve(address,uint256) → bool (nonpayable)
transferFrom(address,address,uint256) → bool (nonpayable) ...

Use Cases

Wallet Inspection

"Check the ETH and token balances of this address" — get a snapshot of any wallet's holdings in seconds. Works with any Ethereum address, including smart contract wallets and multisigs.

Transaction Forensics

"Show me the last 20 transactions for this address" — trace on-chain activity, identify counterparties, and understand fund flows. Use get_internal_transactions for contract calls and get_erc20_transfers for token movements.

Smart Contract Analysis

"Get the ABI for the Uniswap Router contract" — fetch verified contract ABIs to understand what functions are available. Essential for debugging failed transactions or understanding how a protocol works.

Gas Optimization

"What are current gas prices?" — get slow/standard/fast gas estimates with projected transaction costs. Time your transactions to save on fees.

DeFi Portfolio Tracking

"Show me all token balances for my wallet" — aggregate holdings across ERC-20 tokens. Combine with get_prices from the CoinGecko MCP server for full portfolio valuation.

Security Auditing

"List all internal transactions for this contract" — trace internal calls to understand contract behavior. Useful for identifying unusual patterns or verifying that a contract does what it claims.

Security

No API key required — works with Etherscan's free tier. Optional API key for higher rate limits.
Read-only — only fetches public blockchain data from Etherscan's API. No writes, no mutations.
No local file access — does not read or write any files on your machine.
No shell access — does not execute commands or spawn processes.
Rate-limited — automatically caps requests to stay within free tier limits.
Open source — MIT licensed. Inspect the code at GitHub.

Troubleshooting

"API key required" or very slow responses

Without an API key, Etherscan limits you to 1 call per 5 seconds. Get a free key at etherscan.io/apis and set the ETHERSCAN_API_KEY environment variable for 5 calls/sec.

"Rate limit exceeded" (429)

The server auto-retries on 429, but rapid queries can still hit limits. With a free API key, you get 5 calls/sec. Space requests ~200ms apart for best results.

"Contract not found" or empty ABI

Only verified contracts have ABIs on Etherscan. If a contract isn't verified, the API returns an error. Check the contract's verification status on etherscan.io first.

Server won't start

Make sure Node.js 18+ is installed: node --version. If using npx, ensure npm is up to date: npm install -g npm@latest.

MCP client can't connect

Verify the config path is correct. Claude Desktop uses ~/Library/Application Support/Claude/claude_desktop_config.json on macOS and %APPDATA%\Claude\claude_desktop_config.json on Windows. Restart the client after config changes.

"Address checksum" errors

Etherscan expects checksummed addresses (mixed case). The server handles this automatically, but if you see errors, try the checksummed version from etherscan.io.

Requirements

Node.js 18+
Etherscan API key (recommended) — get a free one at etherscan.io/apis

Rate Limits

The server automatically rate-limits requests to ~4 calls/second to stay within Etherscan's free tier (5 calls/sec). Without an API key, Etherscan limits you to 1 call/5 seconds.

To use a higher limit, sign up for a free Etherscan API key and set the ETHERSCAN_API_KEY environment variable:

"mcpServers": { "etherscan": { "command": "etherscan-mcp-server", "env": { "ETHERSCAN_API_KEY": "your_key_here" } } } }

Development

git clone https://github.com/nova/etherscan-mcp-server.git

cd etherscan-mcp-server npm install npm run build npm start

License

MIT

Etherscan MCP Server

概览

PopNx MCP 的三大支柱

它能帮你做什么

安装

安装之前

它能做什么

基础检查i

作者与仓库一致

仍在维护

有许可证

端点有响应

使用 OAuth 登录

工具描述中没有隐藏指令

与“其他”中的其他服务器比较i

常见问题

替代选择

Spec Driven Development

Remote Desktop Commander

HotCodePush

作者的 README

Etherscan MCP Server

What is this?

Why use this?

Tools

Quick Start

1. Add to your MCP client

2. Use it

Example Output

get_eth_balance

get_gas_price

get_transactions_by_address

get_contract_abi

Functions (showing first 25)

Use Cases

Wallet Inspection

Transaction Forensics

Smart Contract Analysis

Gas Optimization

DeFi Portfolio Tracking

Security Auditing

Security

Troubleshooting

"API key required" or very slow responses

"Rate limit exceeded" (429)

"Contract not found" or empty ABI

Server won't start

MCP client can't connect

"Address checksum" errors

Requirements

Rate Limits

Development

License

`get_eth_balance`

`get_gas_price`

`get_transactions_by_address`

`get_contract_abi`