Etherscan MCP

---
name: etherscan-mcp
category: osint-crypto-financial
cost: freemium
api_key_required: yes
repo: https://github.com/crazyrabbitLTC/mcp-etherscan-server
paired_skills: ["crypto-wallet-tracing-eth", "crypto-mixer-and-bridge-tracing", "nft-provenance-research"]
capabilities: ["blockchain-tracing", "ethereum", "wallet-analysis"]
---

# Etherscan MCP — ETH balances, transactions, ERC20 movements, ENS resolution

Queries Etherscan for Ethereum wallet histories, ERC20 token movements, ENS name resolution, and contract interaction analysis.

## Install

```
npm i -g mcp-etherscan-server
```

## Configuration

```json
{
  "mcpServers": {
    "etherscan": {
      "command": "mcp-etherscan-server",
      "env": {
        "ETHERSCAN_API_KEY": "YOUR_ETHERSCAN_KEY_HERE"
      }
    }
  }
}
```

Get a free API key at etherscan.io/apis.

## What it adds

Claude reads wallet transaction histories, traces ERC20 token movements hop-by-hop, resolves ENS names to addresses and vice versa, and follows contract interactions. Essential for following cryptocurrency on Ethereum mainnet — connecting wallet addresses to named entities, tracing fund flows through mixer hops, and documenting the transaction chain for evidence.

## Pairs with skills

- 062 `crypto-wallet-tracing-eth`
- 063 `crypto-mixer-and-bridge-tracing` (Tornado Cash flows visible on-chain)
- 064 `nft-provenance-research`

## Cost

Free Etherscan API key. 5 requests/second on free tier — sufficient for investigation-scale work.