mcp-censys
If you are the rightful owner of mcp-censys and would like to certify it and/or have it hosted online, please leave a comment on the right or send an email to henry@mcphub.com.
mcp-censys is a MCP server that taps into the Censys Search API for real-time domain, IP, and FQDN reconnaissance, now with enhanced MCP Prompt Templates.
mcp-censys turns natural language prompts into targeted Censys queries — surfacing host, DNS, cert, and service information in real-time. It's designed to work with Claude Desktop or any other Model Context Protocol (MCP) client. Built on the official Censys Python SDK, this lightweight container exposes precise reconnaissance tools through Claude-friendly functions. This version introduces MCP Prompt Templates - predefined instruction sets that guide Claude's analysis of domain data. These templates provide structured guidance on how to organize and present the findings, ensuring consistent, high-quality outputs.
Features
- Conversational Queries: Natural language access to Censys intel
- Domain and IP Lookup: Get DNS names, ASN, services, and TLS context
- New FQDN Discovery: Find recently seen subdomains from DNS and cert data
- MCP-Compatible Tools: Use directly from Claude Desktop
- MCP Prompt Templates: Built-in structured guidance templates that instruct Claude exactly how to analyze and present domain data
Tools
lookup_domain
Get comprehensive IPs, DNS names, services, and ASN info for a domain (aggregates data across all results) with built-in MCP prompts that guide Claude to organize findings into meaningful sections
lookup_domain_detailed
Return a sample of 3 individual host records with services, ASN, geo, and TLS data, along with information about total available records and structured MCP prompts for comprehensive infrastructure analysis
lookup_ip
Enrich an IP with DNS, ASN, service info, and TLS metadata
new_fqdns
Find recently observed FQDNs for a domain (via DNS and certs)
host_services
List open ports and service banners for a given domain or IP
