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

A streamlined MCP server for XMP metadata embedding with beautiful formatting and smart filename indicators, enabling metadata embedding, reading, validation, and report generation for lifestyle, product, and orbit schemas.

MCP server for MarkItUp's AI image-annotation pipeline. Generate polished marketing-visual variations of any screenshot, regenerate, AI outpaint, and remove backgrounds — powered by Claude analysis + Gemini rendering.

Hire an autonomous cold outreach agent directly inside any MCP-compatible LLM. Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied LinkedIn groups for SaaS, agencies, e-commerce, founders, local businesses, and PR clients — all from Claude, Cursor, Windsurf, or Continue.

Enables AI and LLM systems to interact with the Buttondown newsletter service, supporting email drafting, scheduling, analytics retrieval, and list management through a Model Context Protocol interface.

Enables AI assistants to interact with LinkedIn and LinkedIn Sales Navigator for searching profiles, managing leads, and handling messaging via cookie-based authentication. It supports professional networking tasks such as sending connection requests and retrieving account details through the Model Context Protocol.

Remote Model Context Protocol (MCP) server for Squad AI. Manage your product strategy with your favourite AI agent.

Production-ready MCP server enabling AI assistants to interact with Braze's customer engagement platform, offering 92 tools for user management, messaging, campaigns, analytics, email/SMS, catalogs, and SCIM provisioning.

Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.

MCP server for Influitive AdvocateHub that provides 15 tools across members, groups, challenges, events, rewards, and approvals, enabling read and write operations with confirm gates and audit logging.

A hosted MCP server that enables managing Google Ads, Microsoft Advertising, TikTok Ads, LinkedIn Ads, and other Google services from ChatGPT, Claude, or any MCP client using natural language, with no code or API keys required.

Create and manage quizzes, question banks, and translations; capture and manage leads, respondents, and bookings; and pull stats and funnel analytics on RooQuiz — a lightweight assessment platform for lead capture and viral sharing.

Enables AI agents to read and write Google Analytics 4, Search Console, and Tag Manager data through MCP tools, with write operations gated behind an explicit flag for safety.

MCP server for the OpenGraph.io API -- extract OG metadata, capture screenshots, scrape pages, query sites with AI, and generate branded images with iterative refinement.

MCP server for email compatibility analysis. Analyze, preview, diff, and fix HTML emails across 15 email clients — plus capture real screenshots and create shareable links with an optional API key.

An MCP server to query the leparrain.com referral directory and automatically inject the correct referral link.

Digital business cards, lead capture forms, and service listings - built and managed by AI. 63 tools with live browser editing, stock photos, web scraping, and guided tours.

Provides AI agents with access to Vruum's AI revenue platform, enabling outbound, deals, pipeline, and CRM automation with 155 tools for searching, managing people, deals, outreach, and engagement, while your AI harness authors all sales and marketing prose.

The email API your AI agent can actually use. A Model Context Protocol server for Send16 that gives Claude, Cursor, and any MCP client 79 tools to send transactional & marketing email, manage contacts, audiences, segments, automations, templates, the inbox, suppressions, and webhooks.

Enables interaction with the Stape platform through the Model Context Protocol. Provides access to Stape's server-side tagging and data management capabilities with support for both US and EU endpoints.

Enables AI assistants to search and retrieve brand data, logos, design assets, and brand context via the Brandfetch API.