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.