"General online search" matching MCP servers:

Enables agents to run SEO and AI-search readiness audits (llms.txt, crawler access, sitemaps, structured data, redirects, indexability, and more), look up startup revenue listings and leaderboards, and check a domain's SPF, DKIM, DMARC, and MX records with concrete fixes. Runs locally over stdio with no account or API key, and frames all third-party responses as untrusted data.

MCP server that parses 3GPP .docx specifications into structured sections with full-text search, letting LLMs browse, search, and follow cross-references without a vector database.

An MCP server for domain name availability checking, WHOIS lookups, and domain suggestions — no API key required.

A Model Context Protocol (MCP) server for the RIPE Atlas network measurement platform. Enables AI assistants to create network measurements, retrieve results, search probes, and manage credits.

Provides search and detail tools for YANG paths across network vendor models (Nokia, Cisco, Arista), enabling models to find correct gNMI paths without guessing. The server is offline and does not connect to any devices.

A minimal MCP server for Shodan, enabling infrastructure reconnaissance through tools like host lookup, search, CVE lookup, and DNS queries.

Enables AI agents to perform passive reconnaissance, vulnerability intelligence, DNS analysis, and device search using Shodan's database of internet-connected devices, all from within your IDE.

Provides MCP servers for VPN control (NordVPN) and torrent lifecycle management via Jackett search and qBittorrent operations, plus a unified CLI.

Enables AI assistants to read and manage NetBox network infrastructure data via MCP. Supports querying all object types, search, changelogs, GraphQL, IP/prefix/VLAN allocation, cable tracing, config rendering, and write operations with safety modes.

AgentDomain MCP allows AI agents to register, buy, and manage internet domains via the Model Context Protocol. Features include domain search, availability check, purchase, DNS record management, and wallet operations.

Provides access to Shodan's IoT search engine API for device search, host intelligence, exploit database, network scanning, and security analysis through natural language.

MCP server that enables AI agents to search domain, IP, port, service, title, ICP, server header, and component assets via the SCANDOMAIN API using Quake-style DSL queries.

MCP server for Packmate, a CTF network traffic analyzer, enabling LLMs to analyze network traffic streams, search patterns, and manage pcap files.

MCP server that exposes Shodan API for host information, search, alerts, scanning, and exploit data.

Aggregates multiple cyberspace search engines (FOFA, Quake, Hunter, ZoomEye) into a unified MCP server, enabling asset search, pagination, statistics, and account info retrieval.

Geekflare MCP server connects your AI agents to the live web for scraping, search, screenshots, DNS lookup, site uptime and more.

Provides a read-only MCP interface to stored Plum-Island host observations over stdio, enabling IP inspection, structured and free-text search, tag and header discovery, and query help through the controller’s Discovery API.

Buy and manage domain names with USDC via API. Search availability, register .com/.ai/.io domains, and manage DNS records. Designed for autonomous AI agents. 15% referral commissions.

Domain Name MCS server from OSIR, an ICANN-accredited registrar: 105 tools and 11 prompts to search, register, renew, transfer, and manage domains, DNS, VPS, email, and websites from Claude, ChatGPT, Cursor, or any MCP client

Enables an AI assistant such as Claude to read and edit the self-hosted network inventory: search and manage entries, check live TCP reachability, map hosts, link and derive relationships, inspect topology, compare configured read-only sources like Docker, OPNsense, AdGuard and Traefik against what is declared, surface conflicts and new devices, and review the audit log.

Enables MCP clients to semantically search and retrieve 3GPP TS/TR specifications across Rel-15 through Rel-20, including 5G NR, LTE, RAN, and 5G core, without maintaining a local index. Supports text, image, section, and document metadata queries with filters by release, document number, series, and TS/TR type.

Enables domain search and availability checks, WHOIS lookups, TLD registration pricing, and TLD requirement queries through MCP tools.

Gives AI agents access to the Shodan API and Shodan CVEDB so they can look up any IP, hostname, search query, product, or CVE. It returns open ports, banners, TLS certificates, DNS records, and vulnerability severity with EPSS and KEV status for analyst-style internet reconnaissance.

Gives AI agents read-only access to production NATS and JetStream event buses through twenty-five bounded, schema-typed tools covering message search, dead-letter inspection, causal flow reconstruction from a request or correlation id, and stream, consumer, KV, object-store and server-health topology. Because the runtime is wired only to read paths and every result is limited, cursored and truncation-flagged, agents can debug live traffic without any ability to mutate it.

A read-only MCP server for Cisco Firepower Management Center (FMC) 7.4.x, allowing LLMs to query firewall configuration, search network objects, and check deployment status through natural language.

Enables AI agents to perform internet reconnaissance, device search, DNS lookups, and CVE/CPE vulnerability analysis through read-only Shodan-powered tools.

Enables AI agents to search for, purchase, connect, and verify custom domains end to end, including setting up email records, configuring forwarding, diagnosing drift, and confirming TLS issuance without handling DNS records directly. It offers twelve hosted tools covering domain availability, registration orders, provider discovery, and account-wide connection inventory.

Enables safe, synthetic telecom event search, refinery blend validation, and legal provision lookup through MCP-style initialize, tools/list, and tools/call JSON-RPC methods.

Gives AI agents access to the Shodan API and Shodan CVEDB for internet-connected device search, IP and DNS reconnaissance, and CVE/CPE vulnerability intelligence with CVSS, EPSS and KEV context. Runs locally over stdio or as a shared HTTP streaming service without spending credits on free tools.

Enables clients to check domain availability live via DNS and RDAP, search a daily snapshot of unregistered 1–4 character names by TLD, length, or substring, turn a word or project name into short free candidates, and pull per-TLD statistics. All four tools are read-only.