How to Use the WCAG.com Accessibility MCP in Vercel AI SDK

Q: How does WCAG.com Accessibility integrate with Vercel AI SDK?

You call the MCP tool and stream the result directly. When auditurlaccessibility runs, the results appear in your component as they are generated by the server.

Q: Can I use WCAG.com Accessibility with Vercel AI SDK for a status check?

Absolutely. The checkapistatus tool confirms if the entire WCAG service is operational before you start any major audits. You want that pre-flight confirmation.

Q: What data does WCAG.com Accessibility touch when using Vercel AI SDK?

This server only touches URLs. The auditurlaccessibility tool processes the URL provided by the user to check for compliance markers.

Stream WCAG compliance audits directly into your UI using the Vercel AI SDK.

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Connect WCAG.com Accessibility MCP to Vercel AI SDK

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

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Setup WCAG.com Accessibility with Vercel AI SDK

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Real-Time URL Accessibility Auditing

The `audit_url_accessibility` tool runs a full WCAG accessibility check on any provided URL. Watching this live is huge. You get the compliance markers and issues streaming straight into your UI, not waiting for some loader spinner to vanish.

Listing All Available Accessibility Rules

Need to show users exactly what standards you're checking against? Use `list_accessibility_rules`. It pulls every single rule the WCAG auditing engine uses, letting your front end render that list as it arrives. Perfect for transparency.

Getting Specific WCAG Guideline Details

The `get_wcag_guideline_details` tool retrieves deep metadata and recommendations for a specific guideline. You can call this when a user clicks 'Learn More' on an error. The data streams right into the component, keeping the whole experience feeling fast.

Setup guide

Set up WCAG.com Accessibility MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all WCAG.com Accessibility tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent WCAG.com Accessibility transactions",
});

console.log(text);
await mcpClient.close();

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Common questions about WCAG.com Accessibility MCP in Vercel AI SDK

You call the MCP tool and stream the result directly. When `audit_url_accessibility` runs, the results appear in your component as they are generated by the server.

Absolutely. The `check_api_status` tool confirms if the entire WCAG service is operational before you start any major audits. You want that pre-flight confirmation.

This server only touches URLs. The `audit_url_accessibility` tool processes the URL provided by the user to check for compliance markers.

It handles streaming results from one audit at a time, which is ideal for showing live feedback. You'll see the data appear sequentially in your UI.

Yes, this setup respects accessibility standards. The streaming nature of the results makes the tool feel highly responsive for all users.

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