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Connect CSS Selector Specificity Calculator to your AI

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Stop guessing why your styles aren't applying.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through CSS Specificity Calculator.

  1. 01

    Validate selector syntax

    Checks if a selector string follows standard CSS syntax. It confirms the selector is well-formed without calculating its weight.

  2. 02

    Calculate specificity

    Returns the exact specificity triplet for a single selector. It provides the specific count for IDs, classes, and element types.

  3. 03

    Compare specificity

    Compares two different selectors. It tells you exactly which one has higher priority in the CSS cascade.

Real work

What teams actually run

01

Debugging Overrides

When a style isn't appearing, use the comparison capability to see why another rule is winning.

02

Code Cleanup

Validate new selectors to ensure they don't contain syntax errors.

03

Refactoring Styles

Check the specificity of existing selectors before changing them to avoid breaking the layout.

04

Learning CSS

Use the triplet calculation to understand how different selector combinations weigh against each other.

One connector, every AI

CSS Specificity Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put CSS Specificity Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

836ms average. Fast in production.

CSS Specificity Calculator is checked daily against the live service.

Daily averagePeak 1024ms
Oct 3Today
Fastest day
682ms
Slowest day
1024ms
14-day trend
Stable-4%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of CSS Specificity Calculator, so you can see the experience inside your AI.

It does not authenticate your account with CSS Specificity Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

CSS Specificity Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — CSS Specificity Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "css-selector-specificity-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up CSS Specificity Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work CSS Specificity Calculator owners hand off.

Frontend developers and UI engineers who spend time debugging complex stylesheets.

  • 01

    Frontend Developer

    Uses the MCP to quickly resolve style conflicts in large component libraries.

  • 02

    UI Engineer

    Hands off selector validation to their agent to ensure clean, valid CSS code.

  • 03

    Web Designer

    Checks selector priority to ensure custom styles apply correctly to existing frameworks.

FAQ

Questions CSS Specificity Calculator owners ask.

  • 01

    How does this MCP calculate specificity?

    It calculates the standard CSS specificity triplet consisting of IDs, classes, and element types.

  • 02

    Can I use this with Cursor?

    Yes, you can connect this MCP to any compatible client including Cursor, Claude, and Windsurf.

  • 03

    Does it check if my CSS is valid?

    The validate_selector_syntax capability checks if a specific selector string adheres to standard CSS syntax.

  • 04

    Will it tell me which style wins?

    Yes, the compare_specificity capability determines which of two selectors has higher priority in the cascade.

  • 05

    Do I need to host this myself?

    No, Vinkius hosts and manages the MCP for you. You just connect it to your client.

  • 06

    How is the specificity score calculated?

    The score is a triplet representing IDs, Classes/Attributes/Pseudo-classes, and Type/Pseudo-elements respectively.

  • 07

    Can I check if my CSS selector is valid?

    Yes, you can use the validate_selector_syntax capability to verify if a selector string follows standard CSS rules.

  • 08

    Which selector wins in a conflict?

    The selector with the higher specificity score wins. You can use compare_specificity to find the winner between two selectors.

Explore

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