An MCP server and skill that find unjustified null-forgiving operators in C# solutions and steer toward code fixes.
MCP servers for AI agents
An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. This section lists servers with their transport, auth method and environment variables, an install command and an access level with its reasons.
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Found: 3090
Official
An agent searches, reads and writes a Roam Research graph through the desktop app's local API, with a CLI and a syntax skill
An MCP server that drives your already open Chrome and stops to ask you about a 2FA code, a CAPTCHA, or a choice only you can make
Official
Official Contentful MCP server: entries, content types, assets, locales and AI Actions via the Management API
Russian stack
MCP servers for Wildberries, Ozon, Yandex Market and Avito seller accounts via official APIs with write confirmation
A local MCP server with call graphs and symbol search: the agent sees code structure and what an edit affects in advance.
EndNote MCP searches an EndNote reference library, reads PDFs and builds citations and bibliographies inside Claude Desktop
Weather MCP Server: weather and air quality for agents
Weather MCP Server
An MCP server on Open-Meteo: current weather, a period forecast, air quality and time zones with no API key
An MCP server that checks domain availability across 50-plus zones and suggests alternatives when the name is taken.
Multi-engine web search and clean page reading for an agent: keyless parallel search, URL reading, public X posts, MCP and a TUI
An MCP server and extension for SketchUp: an agent runs Ruby scripts in a model, inspects the scene and exports the result.
Official
One MCP server for ad accounts, analytics and CRM: Google Ads, Meta Ads, GA4, TikTok Ads and LinkedIn Ads
An MCP server and skill giving an agent a Hyprland desktop: window tree, screenshots, named clicks, mouse and keyboard.
Official
The HeyPCB MCP server: an agent designs KiCad printed circuit boards, picks parts, routes and runs DRC before release.
BGG MCP gives an assistant BoardGameGeek data: game details, collections, store prices, recommendations and rules answers
An MCP server for OpenAlex: 31 tools for papers, citations, authors and journals, plus a skill with a small CLI for Claude Code.
App Store Connect MCP reads TestFlight builds, reviews and sales and updates app metadata through the Apple API
Lightweight permanent agent memory on Git: Claude Code, Codex, Cursor and ChatGPT read and write the same Markdown notes
minirag-mcp searches your documents with hybrid vector and BM25 search and runs on your computer without sending files out
A gopls-based MCP server: the agent finds Go definitions, interface implementations, references and calls with compiler precision
An Unreal Engine plugin with MCP: the agent drives the editor via RQL, edits Blueprints and C++, captures viewport shots; cloud or own server
SketchUp MCP
sketchup-mcp2
An MCP server for SketchUp: the agent creates and changes geometry, assigns materials and exports the scene, and eval_ruby runs Ruby inside the program
Memory for Claude Code: hooks record human and agent decisions, and a grade is assigned afterwards once the outcome is known.
Official
An agent works with STAAD.Pro models on your computer through the OpenSTAAD API: several running instances, no cloud
Frequently asked questions
What is an MCP server?
An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. The agent calls its tools while it works.
How do I connect an MCP server to an agent?
The card lists how to run it (npx, uvx, docker or a remote URL) and the environment variables. A config snippet goes into the agent settings.
Do I need a key or a paid account?
It depends on the server. Each card states the auth method and requirements, including paid accounts, in the limitations block.