"Capture The Flag (CTF) cybersecurity competitions and challenges" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
AI-first file sharing and collaboration. 251 tools give agents a full workspace: file storage, branded shares, comments, workflows, and built-in RAG. 50GB free, no credit card.
Give an agent a place to put large output. Instead of returning 40k characters of a build log into the conversation, it posts the file to docbin and hands back one short URL. Docs render with syntax highlighting and markdown, every update is a new immutable version, and old links keep working. Six tools for create, read, update, delete, list and search. Works anonymously with no signup, or sign in for permanent docs under your own handle.
Publish AND operate micro-apps from your AI. No account, no API key. Stable URL, EU-hosted.
Upload, delete, and manage images on BeeIMG. Supports URL and file uploads with premium plan info.
Create account-free website previews and publish durable sites from AI agents with Revdoku.
Dropbox MCP Pack — wraps the Dropbox API v2
E-signatures for agents: mint a sandbox key, send PDFs, track status, download the sealed result.
Publish HTML, Markdown, PDF, or images as instant shareable links with expiry and passwords.
Zero-auth MCP: image optimize, cited storage/format data, and dev utilities LLMs get wrong.
Manage Uploadcare files, groups and webhooks; upload and store files.
Holiday photo MCP server: list and fetch personal holiday photos inline in Claude chat.
Capture photos remotely from mobile devices via S3-backed upload URLs
Create a free sandbox object storage bucket; upload, download, list, inspect, and delete objects.
The Telnyx MCP server is an official implementation of the Model Context Protocol that enables AI clients (like Claude Desktop, Cursor, and OpenAI Agents) to interact with Telnyx's telephony, messaging, and AI assistant APIs. It provides comprehensive capabilities including making and managing phone calls, sending SMS/MMS messages, purchasing and configuring phone numbers, creating AI assistants with custom instructions, managing cloud storage buckets, scraping and embedding website content, and handling integration secrets. The server exists as both a local implementation and a remotely hosted version, allowing developers to integrate real-world communication infrastructure directly into AI applications.
Persistent cloud memory for AI agents. Store and search key-value memories across sessions.
Provides tools to manage Memorystore for Valkey instances and backups.
File uploads for AI agents. Upload, list, and manage files. No signup required.
Let Claude and ChatGPT publish real websites — iterate in previews, keep the good one.
