Question 1

What is the @xiaok/etherscan-mcp server?

Accepted Answer

It's a Model Context Protocol (MCP) server designed to allow AI Agents to easily access and interact with data from Etherscan's API.

Question 2

What is an MCP Server?

Accepted Answer

MCP (Model Context Protocol) is an open protocol that standardizes how applications provide context to LLMs. An MCP server acts as a bridge, allowing AI models to access external data sources.

Question 3

How can I test the @xiaok/etherscan-mcp server?

Accepted Answer

You can use `mcp-cli` (via `npx fastmcp dev server.js` or `npx fastmcp dev server.ts`) or the official `MCP Inspector` (via `npx fastmcp inspect server.ts`).

Question 4

How do I use the @xiaok/etherscan-mcp server with Claude Desktop?

Accepted Answer

You need to configure Claude Desktop with the server's command, arguments, and environment variables, including your Etherscan API key. See the configuration example in the documentation.

Question 5

Where can I find the Etherscan API documentation?

Accepted Answer

The API documentation is available at [https://docs.etherscan.io/etherscan-v2](https://docs.etherscan.io/etherscan-v2).

Question 6

Which blockchain networks are supported?

Accepted Answer

The server supports various chains listed at [https://docs.etherscan.io/etherscan-v2/getting-started/supported-chains](https://docs.etherscan.io/etherscan-v2/getting-started/supported-chains). Note that not all endpoints are supported by all chains; check [https://forms.blockscan.com/public/grid/3E9QiN00NLhCQVibiP3Z-Bpqhmd7zGXsgapEKJupxiI](https://forms.blockscan.com/public/grid/3E9QiN00NLhCQVibiP3Z-Bpqhmd7zGXsgapEKJupxiI) for endpoint support.

Question 7

What is UBOS?

Accepted Answer

UBOS is a full-stack AI Agent development platform focused on bringing AI Agents to every business department. It helps you orchestrate AI Agents, connect them with your enterprise data, build custom AI Agents, and create Multi-Agent Systems.

Question 8

Do I need an Etherscan API Key to use this?

Accepted Answer

Yes, the server requires an Etherscan API key to authenticate and access data from Etherscan. You must set the `ETHERSCAN_API_KEY` environment variable.

Question 9

What kind of data can I retrieve from Etherscan using the @xiaok/etherscan-mcp server?

Accepted Answer

You can retrieve various blockchain data, including transaction details, block information, smart contract code, event logs, and account balances.

Question 10

Can I use this server to write data to the blockchain?

Accepted Answer

No, the @xiaok/etherscan-mcp server is designed for reading data from Etherscan. Writing data to the blockchain requires different tools and techniques.

Question 11

How does this server improve AI Agent performance?

Accepted Answer

By providing direct and structured access to blockchain data, the server allows AI Agents to make more informed decisions, automate tasks, and gain a deeper understanding of blockchain activity.

Etherscan API Integration Server

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