Etherscan MCP
# @xiaok/etherscan-mcp
[](https://smithery.ai/server/@xiaok/etherscan-mcp-server)
A dynamic MCP server for interacting with Etherscan's API and services.
<a href="https://glama.ai/mcp/servers/@xiaok/etherscan-mcp">
<img width="380" height="200" src="https://glama.ai/mcp/servers/@xiaok/etherscan-mcp/badge" alt="Etherscan MCP server" />
</a>
## Running Your Server
### Test with `mcp-cli`
The fastest way to test and debug your server is with `fastmcp dev`:
```bash
npx fastmcp dev src/index.ts
```
This will run your server with [`mcp-cli`](https://github.com/wong2/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`](https://modelcontextprotocol.io/docs/tools/inspector) to inspect your server with a Web UI:
```bash
npx npx fastmcp inspect src/index.ts
```
## FAQ
### How to use with Claude Desktop?
Follow the guide https://modelcontextprotocol.io/quickstart/user and add the following configuration:
```json
{
"mcpServers": {
"etherscan_mcp": {
"command": "npx",
"args": ["tsx", "/PATH/TO/YOUR_PROJECT/src/index.ts"],
"env": {
"ETHERSCAN_API_KEY": "********"
}
}
}
}
```
## API Doc
https://docs.etherscan.io/etherscan-v2
support chain list: https://docs.etherscan.io/etherscan-v2/getting-started/supported-chains
Please note that not all endpoints are supported by all chains. Please find support list here: https://forms.blockscan.com/public/grid/3E9QiN00NLhCQVibiP3Z-Bpqhmd7zGXsgapEKJupxiI
## TODO
1. support pro api
TDQS
Scored across 6 tools
Most tools have distinct purposes targeting different token-related queries, but get_token_holders and get_token_holders_count could be confused as they both retrieve holder information. The descriptions clarify the difference (list vs count), but the overlap in naming might cause misselection.
All tool names follow a consistent verb_noun pattern using snake_case (e.g., get_chain_id, get_token_balance). The naming is highly predictable and readable throughout the set, with no deviations in style or convention.
With 6 tools, the count is reasonable for an Etherscan-focused server, covering chain info, RPC endpoints, and token data. It feels slightly thin for a full blockchain explorer, but it's well-scoped for the provided token and chain utilities.
The tools cover token balances, holders, and supply, plus chain and RPC info, but there are notable gaps for a broader Etherscan domain. Missing operations include transaction lookups, contract interactions, and gas/price queries, which are common in blockchain tools, limiting coverage to a narrow subset.