MCP Servers

Etherscan MCP

An MCP server that provides access to Etherscan blockchain data APIs, allowing users to query Ethereum blockchain information through natural language.

Tools

get_filtered_rpc_list

Get a filtered list of RPC endpoints for a given chain ID

get_chain_id

Get the chain ID for a given chain name

get_total_supply

Get the total supply of a token given its address

get_token_balance

Get the balance of a specific token for a specific address

get_token_holders

Get the token holders for a given token address

get_token_holders_count

Get the number of token holders for a given token address

README

@xiaok/etherscan-mcp

A dynamic MCP server for interacting with Etherscan's API and services.

Running Your Server

Test with `mcp-cli`

The fastest way to test and debug your server is with fastmcp dev:

npx fastmcp dev server.js
npx fastmcp dev server.ts

This will run your server with mcp-cli for testing and debugging your MCP server in the terminal.

Inspect with `MCP Inspector`

Another way is to use the official MCP Inspector to inspect your server with a Web UI:

npx fastmcp inspect server.ts

FAQ

How to use with Claude Desktop?

Follow the guide https://modelcontextprotocol.io/quickstart/user and add the following configuration:

{
  "mcpServers": {
    "my-mcp-server": {
      "command": "npx",
      "args": ["tsx", "/PATH/TO/YOUR_PROJECT/src/index.ts"],
      "env": {
        "ETHERSCAN_API_KEY": "********"
      }
    }
  }
}

API Doc

https://docs.etherscan.io/

TODO

fully test
support more EVM chain

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