"Capture The Flag (CTF) cybersecurity competitions and challenges" matching MCP servers:

Enables AI agents to inspect any public domain’s web technology stack, email deliverability and DNS health (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI), and HTTPS security posture with typed JSON scores and remediation-ready findings, plus history, bulk checks, monitoring alerts, and reverse technology lookups.

Local MCP server (stdio) exposing the entire Hetzner Cloud API as 201 typed tools, read and write

the-real-unifi-mcp License: MIT Node MCP SDK [![CI](https://github.com/mguttmann/the-real-unifi-mcp/actions

Enables interaction with The Things Industries LoRaWAN platform via MCP tools, supporting application, device, gateway, and webhook management.

Enables authenticated remote MCP clients to manage a Kali Linux environment, run modular tools in sandboxed or optional host contexts, configure networking, and monitor jobs through a live WebUI.

Enables an AI agent to check whether a site is healthy and configured correctly by reading TLS certificates and classifying handshake failures, resolving DNS records from raw wire packets, tracing HTTP redirects and timings, and grading security headers with exact fixes. Every connection passes through an SSRF guard that vets and pins addresses so the agent cannot be aimed at internal networks.

Read-only MCP server that surfaces UniFi network data from a UCG-Fiber console to Claude, enabling monitoring of hosts, sites, devices, clients, ISP metrics, and device stats via read-only API tools.

Enables AI to query live weather, domains, IPs, DNS, SSL, currency rates, and more via the APIFreaks API.

Enables an LLM agent to investigate a Kong Gateway through fourteen read-only, schema-validated tools and a deterministic diagnostic engine, so it can trace routes, services, plugins and upstream health and explain faults such as why authentication is failing on a path. Every fact comes from the gateway itself, and the model only selects tools and writes the evidence-backed explanation.

Lets an agent mint and manage its own hostnames on DNSMint, through the Model Context Protocol.

Read-only access to a local Hiberden backup catalog: list projects, archives, tapes, and jobs, check 3-2-1 coverage, and verify a stored copy by reading it back and re-hashing it. Runs against the catalog on your own machine, so nothing leaves it.

MCP server that exposes mDNS service discovery functionality via the Model Context Protocol, enabling LLMs to discover and query zero-configuration network services on the local network.

Diagnoses a domain's email authentication — SPF, DMARC, DKIM, MX, blacklists and domain or SSL expiry - and returns copy-paste fix records generated by a validating engine, never a language model. The MCP server is hosted remotely; this repository carries the plugin manifest, connector config and bundled skill.

Answers "what is this IP" by matching addresses against a synced local copy of Azure service tags and live reverse DNS lookups, including the reverse direction of listing every CIDR prefix for a given service-tag name. Every answer is honestly labeled with the source that produced it, a sync timestamp, and an explicit null/status when a source didn't resolve, so nothing is fabricated.

MCP server that wraps the vmm-api CLI to enable listing and managing VMM network topologies through natural language.

An MCP server for managing Hetzner DNS zones and RRSets via the Hetzner Cloud API. It enables listing, creating, updating, deleting, importing/exporting zone files, and managing protection and TTLs from MCP clients.

Enables domain lookups using the RDAP protocol, returning structured registration data, nameservers, and contacts from over 50 supported TLDs.

Enables AI assistants to perform WHOIS, DNS, SSL, and domain availability lookups via the WhoisJSON API.

Bridges the mihomo (Clash Meta) RESTful API to the Model Context Protocol, enabling AI clients to switch proxies, test latency, refresh subscriptions, set operating modes, and monitor connections.

MCP server providing typed, safety-gated access to UniFi Network consoles via the official API, enabling management of devices, clients, networks, WiFi, firewall policies, and more.

MCP server for safe programmatic access to the local Tailscale daemon: tailnet discovery, SSH config generation, port sharing via Serve/Funnel, and latency matrices.

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.

MCP server for the Zabbix API that provides a daily_brief summary of active problems and category-specific metrics, along with tools to query problems, hosts, and item values.

Comprehensive MCP server for the Namecheap API, enabling domain management, DNS record control, nameserver settings, and domain registration from any MCP client.

Exposes the full Kong Gateway Admin API as MCP tools, enabling AI assistants to manage services, routes, consumers, plugins, upstreams, and more.

Enables LLM clients to inspect and manage a TP-Link Deco mesh Wi-Fi network, covering mesh nodes, connected devices, SSIDs and radio settings, internet status, blocked clients, and DHCP address reservations. Runs entirely against the router on the local network without any cloud account.

Control your UniFi network via AI with a lightweight 2-tool MCP server that supports both cloud and local UniFi controllers.

Lets an AI assistant inspect a Linux machine through ten fixed read-only tools covering load, memory, disks, processes, ports, interfaces, systemd units, the journal, and allowlisted log files. All output is size-capped, control-character-stripped and secret-redacted, and nothing in the package can write to the system.

A Model Context Protocol server that wraps the Namecheap API, enabling AI assistants to manage domains, DNS records, SSL certificates, and account information.

Register free *.pntr.dev subdomains and manage them from your AI assistant — DNS records, wildcard DNS, disposable email inboxes, and HTTP request capture for webhook debugging. 15 tools over stdio; hosted endpoint also available.