How to Use the Etherscan MCP in Claude

Q: How does Etherscan integrate with Claude Desktop?

You add the server configuration to your claudedesktopconfig.json file. Once saved, Claude restarts and picks up the tools for immediate use.

Query Ethereum data directly within Claude Desktop. Stop switching tabs and start analyzing contract state with 19 specialized tools.

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Connect Etherscan MCP to Claude Desktop

Create your Vinkius account to connect Etherscan to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Etherscan with Claude Desktop

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Perplexity

Fetch real-time chain data in Claude Desktop

Stop digging through block explorers manually. This MCP Server lets your agent pull live data like `get_balance` or `get_eth_price` without leaving your chat window. It handles the heavy lifting of API calls so you can focus on the results. You get accurate, raw data returned directly into your conversation.

Audit contract code inside Claude Desktop

Need to check a contract's logic? Use `get_source_code` or `get_abi` to pull the exact code into your context window. It's the fastest way to review deployments without hunting for files on a website. You can also verify deployments using `verify_source_code`. This keeps your security workflow entirely within your AI client.

Analyze transaction history via Claude Desktop

Trace complex activity using `get_tx_list` or `get_token_tx`. Whether you're tracking ERC-20 movements or internal calls, the agent retrieves the records you need to build a timeline. Everything happens via the MCP standard. You define the address, and the tools return the structured data your agent needs to answer your questions.

Setup guide

Set up Etherscan MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Etherscan MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Etherscan MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under etherscan-mcp.

json

{
  "mcpServers": {
    "etherscan-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Etherscan. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Etherscan MCP in Claude Desktop

You add the server configuration to your `claude_desktop_config.json` file. Once saved, Claude restarts and picks up the tools for immediate use.

These tools primarily interface with the Ethereum mainnet. They provide specific data for address balances and transaction histories on that chain.

The tools appear in the chat interface once configured. You prompt the agent to use them, and it executes the query to return the blockchain data.

You set your API key as an environment variable in your config file. The server uses this to authenticate your requests securely.

Your address and transaction data are sent only to the official API endpoints. The MCP server keeps your queries ephemeral, meaning no persistent logs remain on your local machine.

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