ENS MCP Server

An MCP server that resolves, analyzes, and contextualizes ENS domain activity to empower Web3 agents with human-readable identity insights.

Features

• Resolve ENS Names: Map ENS domains (e.g., vitalik.eth) to Ethereum addresses.
• Detailed Domain Information: Fetch comprehensive domain data, including address, owner, registrant, expiry, registration, wrapped domain, and resolver details.
• Domain Event History: Retrieve events like transfers, resolver changes, and name wrapping, with relevant addresses and timestamps.

Requirements

• Python 3.10 or higher
• uv (recommended for dependency management)
• A valid API key for The Graph.

Installation

1. Clone the Repository:

git clone https://github.com/kukapay/ens-mcp.git
   cd ens-mcp

2. Install Dependencies:

uv sync

3. Installing to Claude Desktop:

Install the server as a Claude Desktop application:

uv run mcp install main.py --name "ens-mcp"

Configuration file as a reference:

{
       "mcpServers": {
           "ens-mcp": {
               "command": "uv",
               "args": [ "--directory", "/path/to/ens-mcp", "run", "main.py" ],
               "env": { "THEGRAPH_API_KEY": "the_graph_api_key"}               
           }
       }
    }

Replace /path/to/ens-mcp with your actual installation path, and the_graph_api_key with your API key from The Graph.

Usage

Tools

The server provides three MCP tools:

1. resolve_ens_name(domain: str) -> str

Resolves an ENS domain to its Ethereum address.

• Input: ENS domain (e.g., vitalik.eth)
• Output: Ethereum address (e.g., 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045) or "None"

Example:

resolve_ens_name("vitalik.eth") -> "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

2. get_domain_details(domain: str) -> str

Fetches detailed information about an ENS domain, including its address.

• Input: ENS domain
• Output: Formatted string with domain details (address, owner, registrant, expiry, etc.)

Example Output:

ENS Domain: vitalik.eth
   Address: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
   Label Name: vitalik
   Label Hash: 0x...
   Subdomain Count: 5
   Owner: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
   Registrant: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
   Wrapped Owner: None
   Expiry Date: 2025-10-31 00:00:00
   TTL: 0 seconds
   Is Migrated: true
   Created At: 2017-05-04 12:00:00
   Registration: Registration Date: 2017-05-04 12:00:00
   Registration Expiry: 2025-10-31 00:00:00
   Registration Cost: 1000000000000000 Wei
   Registrant: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
   Wrapped Domain: Not Wrapped
   Resolver: Resolver Address: 0x4976fb03C32e5B8cfe2b6cCB31c09Ba78EBaBa41
   Content Hash: None
   Text Records: email, url

3. get_domain_events(domain: str) -> str

Retrieves events associated with an ENS domain.

• Input: ENS domain
• Output: Formatted string listing events (e.g., transfers, resolver changes)

Example Output:

Event: Transfer
   Block Number: 1234567
   Transaction ID: 0x...
   New Owner: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

   Event: NewResolver
   Block Number: 1234568
   Transaction ID: 0x...
   Resolver Address: 0x4976fb03C32e5B8cfe2b6cCB31c09Ba78EBaBa41
   Resolver Addr: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

License

This project is licensed under the MIT License. See the LICENSE file for details.