#whois

Exposes 280+ free dev/security tools from onlinecybertools.com as MCP tools in one server: Base64/URL/JWT encoders, MD5/SHA/HMAC/bcrypt/argon2 hashes, JSON/YAML/XML formatters, regex tester, network diagnostics (ping/traceroute/dig/whois/SSL/SPF/DMARC), and OSINT lookups. No auth, no API key.

28 WhoisXML API tools for AI agents — WHOIS lookups & history, reverse WHOIS, DNS lookup & history, reverse DNS/MX/NS, IP geolocation, IP netblocks, SSL certificates, subdomain discovery, threat intelligence, domain categorization, email verification, typosquatting detection, and bulk variants for batched lookups. Stdio and Streamable-HTTP transports, OAuth 2.1 with PKCE for hosted mode, npm and Docker distributions.

IP2WHOIS MCP server is a Model Context Protocol (MCP) server that provides comprehensive WHOIS lookup capabilities using the IP2WHOIS API. This server allows AI agents to query domain registration details, including expiry dates, registrar information, and registrant data.

x402 micropayment API for AI agents. Domain WHOIS and intelligence lookup. Pay per call with USDC on Base.

WhoisJSON MCP Server exposes four domain intelligence tools directly inside Claude, Cursor, and Windsurf — no code required. whois_lookup: Full WHOIS registration record for any domain — registrar, creation and expiry dates, nameservers, registrant contacts, and DNSSEC status. dns_lookup: All DNS records in a single call — A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, DMARC, and more. Useful for mail server audits, SPF/DKIM verification, and infrastructure mapping. ssl_check: TLS certificate details including issuer, expiry date, Subject Alternative Names, and full chain validity. Detect expired or misconfigured certificates instantly. domain_availability: Instant registration availability check for any TLD. Returns a clear registered/available status. Your WhoisJSON API key works identically for the REST API and the MCP server. 1,000 free requests/month, no credit card required. Get your API key at whoisjson.com.

PageSpeed, WHOIS, DNS, SSL checks, and site health analysis for AI agents. 6 tools, free, no API key.

Unstoppable Domains MCP server for AI-powered domain name management. Search domain availability, check pricing, manage your portfolio, configure DNS, list domains for sale on the marketplace, and complete purchases — all through natural language. Supports ICANN/DNS domains (.com, .net, .org, .io, .ai, and 400+ TLDs).

A comprehensive domain intelligence MCP server with 50+ tools for domain research, DNS analysis, and web infrastructure inspection. Features include domain availability checking across multiple TLDs, WHOIS/RDAP lookups, DNS record analysis and propagation checks, SSL/TLS certificate grading and chain inspection, email security auditing (SPF, DKIM, DMARC), domain reputation scoring, market valuation, tech stack detection, hosting and CDN identification, typosquatting protection, subdomain enumeration via Certificate Transparency logs, IP geolocation, reverse DNS lookups, and more. Connects as a remote MCP server via SSE at https://domscan.net/mcp — no API key required.

A Model Context Protocol (MCP) server that provides LLMs with network information lookup tools through WHOIS and RIPE Database queries.

mcp-whoisxmlapi bridges the gap between AI assistants and comprehensive domain intelligence by providing several specialized tools for domain, IP, and DNS analysis, secure token-based authentication for API access, multiple usage options including Docker and native binaries, and flexible integration supporting both stdio and Server-Sent Events (SSE) modes.

Domain WHOIS queries and AI-driven domain recommendations.

Core network security data includes PassiveDNS resolution records, domain and IP registration details, website certificate information, and IOC (Indicators of Compromise) database queries.

网络基础数据，包括passivedns解析数据、域名和IP的注册信息、网站证书、IOC库的查询。

网络基础数据，包括passivedns解析数据、域名和IP的注册信息、网站证书、IOC库的查询。

MCP Server for whois lookups

MCP Server for whois lookups.

Performs whois lookup against domain, IP, ASN and TLD.

Performs whois lookup against domain, IP, ASN and TLD.