DNStwist MCP Server

What is DNStwist MCP Server?

An MCP server wrapping the dnstwist DNS fuzzing tool to detect typosquatting, phishing, and corporate espionage. It integrates with MCP-compatible assistants like Claude Desktop for security researchers to analyze domain permutations and identify potentially malicious domains.

How to use DNStwist MCP Server?

Install via Smithery (npx -y @smithery/cli install @burtthecoder/mcp-dnstwist --client claude) or manually via npm install -g mcp-dnstwist and add to your Claude Desktop config. Invoke the fuzz_domain tool with a required domain parameter and optional settings for nameservers, threads, output format, and more.

Key features of DNStwist MCP Server

• Domain fuzzing with multiple permutation algorithms
• Registration status check for permutated domains
• DNS record analysis (A, AAAA, MX, NS)
• HTTP banner capture for web presence
• WHOIS data retrieval for registration details
• Fuzzy hash generation for phishing detection
• Configurable DNS servers and parallel processing

Use cases of DNStwist MCP Server

• Identify typosquatting domains targeting your brand
• Detect phishing infrastructure impersonating your organization
• Audit domain registration patterns for corporate espionage
• Automate security research on domain variations

FAQ from DNStwist MCP Server

What are the system requirements?

Node.js v18 or later, Docker (Docker Desktop on macOS/Windows, or Docker Engine on Linux), and an MCP-compatible client like Claude Desktop.

Can I analyze any domain without permission?

No. Only analyze domains you own or have explicit permission to test. Misuse may violate laws and DNS server policies.

What data does DNStwist MCP Server capture?

It collects DNS records (A, AAAA, MX, NS), HTTP banners, WHOIS info, and fuzzy hashes of web pages. Output can be JSON, CSV, or a simple list.

How do I troubleshoot Docker issues?

Verify Docker is installed and running with docker --version and docker ps. On Linux ensure your user is in the docker group. Also confirm Docker has permission to run commands.

What are known limits or performance concerns?

DNS servers may rate-limit or block automated queries. Thread count (default 50) can be adjusted based on system capabilities and network latency. Large scans should be done responsibly to avoid impacting DNS infrastructure.