mcp-censys
MCP server for Censys API domain/IP reconnaissance. mcp-censys is a Model Context Protocol (MCP) server maintained by nickpending. It connects to MCP-compatible clients such as Claude Desktop, Cursor, Cline, and other agents that speak the protocol. It exposes 5 tools, including lookup_domain, lookup_domain_detailed, lookup_ip, new_fqdns and host_services, that an agent can call directly. It is categorized under Security/Reconnaissance, AI/OSINT and Tool/Docker.
What is this MCP
mcp-censys is a Model Context Protocol server that interfaces with the Censys Search API to provide real-time domain, IP, and FQDN reconnaissance data through natural language queries. It enhances Claude's capabilities with specialized tools for infrastructure analysis.
How to use this MCP
Install via Docker with your Censys API credentials, then integrate with Claude Desktop by adding the container configuration. Users can make natural language queries about domains/IPs which are translated into structured Censys API calls.
What this MCP can be used for
This tool enables security researchers and analysts to quickly gather infrastructure intelligence about domains (DNS, services, ASN info), IP addresses (services, TLS), and discover new FQDNs through conversational interfaces with Claude.
AIMCP authority
DR and traffic signal for the AIMCP public domain.
Frequently asked questions
What is the mcp-censys MCP server?
mcp-censys is a Model Context Protocol server from nickpending. It lets MCP-compatible AI clients call its tools over a standard interface, so agents like Claude, Cursor, and Cline can use it without custom integration.
How do I connect mcp-censys to my AI client?
Add mcp-censys to your client's MCP configuration using the stdio or SSE connection shown in the usage examples on this page, then restart the client to load the server.
What tools does mcp-censys provide?
mcp-censys provides 5 tools: lookup_domain, lookup_domain_detailed, lookup_ip, new_fqdns and host_services.
Is mcp-censys free to use?
mcp-censys is listed on AIMCP for free. Any API keys or accounts required by the underlying service are set by its provider.
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