How to Use the Accessibility Prover MCP in Cline

Tell Cline to build a component. Get WCAG 2.2 AA compliant code, every time. No manual checks needed.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect Accessibility Prover MCP to Cline

Create your Vinkius account to connect Accessibility Prover to Cline and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

GDPR Free for Subscribers

Setup Accessibility Prover with Cline

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Integrate Accessibility Gates Into Cline's Workflow

The `validate_accessibility` tool acts as a required checkpoint for Cline. Before it writes a single file, Cline must submit its UI component plan to this tool. It has to prove the design uses correct semantic HTML and has a logical keyboard navigation flow. This forces Cline's end-to-end process to start with compliance. The tool checks for specific contrast ratios, ARIA label definitions, and `prefers-reduced-motion` media queries. If the plan is bad, Cline can't proceed, which means inaccessible code never gets generated.

From Prompt to Compliant Component with this MCP Server

Ask Cline to "build a user profile card." With this MCP Server installed, Cline's first step is to create a spec and pass it to `validate_accessibility`. It won't start generating the React component and its tests until the accessibility rules are met. You get the full power of Cline's autonomous coding, but with an accessibility guardrail built in. It's the difference between your agent just writing code and writing the *right* code from the start. You'll see fewer accessibility issues in pull requests.

Stop Reviewing Basic Accessibility Errors

This tool eliminates common accessibility mistakes before they happen. Cline has to specify alt text, define focus traps for modals, and use explicit form labels. It offloads the mental checklist of WCAG requirements from you to your agent. By making compliance a machine-checked step, you can focus on the bigger picture. Let Cline handle the details of EAA 2025 and WCAG 2.2 AA standards. The result is better code and faster, more confident development cycles.

Setup guide

Set up Accessibility Prover MCP in Cline

Prerequisites

VS Code with Cline extension installed
Active Vinkius subscription with a valid endpoint token

1

Open Cline MCP settings

Click the Cline icon in the VS Code sidebar to open the Cline panel. Then click the MCP Servers icon (server stack) at the top-right corner of the panel.
2

Add a remote server

Click "Remote Servers" at the top, then click "Add Remote MCP". In the Name field, type accessibility-prover-mcp. In the URL field, paste your Vinkius endpoint: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp. Get your token from cloud.vinkius.com.
3

Enable the server

After saving, the server appears in the Cline MCP panel. Toggle the switch to enable it. The status indicator turns green when the connection is live.
4

Start using tools

Return to the Cline chat and ask: "Check my latest Accessibility Prover refund status." Cline will discover the available tools and request your approval before invoking each one — giving you full control over every action.

Cline MCP Settings

{
  "mcpServers": {
    "accessibility-prover-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Accessibility Prover. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect Accessibility Prover now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Accessibility Prover MCP in Cline

It forces Cline to validate its UI design against strict accessibility rules before it writes any code. This means the components Cline builds for you are compliant by default, saving you from fixing basic WCAG errors later.

It stops things like non-semantic layouts, poor keyboard navigation paths, low-contrast text, missing ARIA labels, and unhandled motion preferences. It catches design flaws before they become code.

The rules are fixed to WCAG 2.2 AA and EAA 2025 standards. The tool is intentionally rigid to ensure a high standard of accessibility. You don't configure the rules, you let Cline work to meet them.

The easiest way is through the Marketplace tab in Cline's MCP Servers panel for a one-click install. You can also add it by URL via the Remote Servers tab.

Your UI specifications—containing HTML structure, CSS properties, and ARIA annotations—are sent for validation. The processing happens in a dedicated, sandboxed environment on Vinkius. No data is logged or retained after the validation request is complete.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript