How do I find my WCAG.com API Key?

Log in to your [**WCAG.com account**](https://api.wcag.com/), navigate to the 'API Keys' section in your dashboard, and generate a new token. Copy and paste it below.

What compliance levels are supported?

The API audits against WCAG 2.1 levels A, AA, and AAA, identifying issues for each category.

Does it provide remediation tips?

Yes. The `get_wcag_guideline_details` tool retrieves specific implementation recommendations to help fix accessibility issues identified during audits.

WCAG.com Accessibility MCP Server for Google ADK 4 tools — connect in under 2 minutes

Name: WCAG.com Accessibility
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 4 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add WCAG.com Accessibility as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

python

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="wcagcom_accessibility_agent",
    instruction=(
        "You help users interact with WCAG.com Accessibility "
        "using 4 available tools."
    ),
    tools=[mcp_tools],
)

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About WCAG.com Accessibility MCP Server

Empower your AI agent to orchestrate your entire web accessibility and inclusive design workflow with WCAG.com, the authoritative source for digital compliance data. By connecting the WCAG.com API to your agent, you transform complex accessibility audits into a natural conversation. Your agent can instantly analyze URLs for WCAG 2.1 compliance, audit specific issues and levels, and retrieve detailed remediation metadata without you ever touching a technical validator. Whether you are conducting quality assurance research or managing regional accessibility constraints, your agent acts as a real-time inclusive design consultant, ensuring your data is always verified and precise.

Google ADK natively supports WCAG.com Accessibility as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 4 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

What you can do

Accessibility Auditing — Retrieve high-resolution reports for any URL, identifying issues and maintain a clear view of WCAG compliance.
Guideline Oversight — Audit specific WCAG guidelines to understand the technical reach of your digital products instantly.
Issue Discovery — Search for accessibility rules and standards to identify relevant stylistic markers for your UI components.
Metadata Intelligence — Retrieve unique issue identifiers and remediation recommendations to assist in deep-dive classification.
Operational Monitoring — Check API status to ensure your accessibility research workflow is always operational.

The WCAG.com Accessibility MCP Server exposes 4 tools through the Vinkius. Connect it to Google ADK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect WCAG.com Accessibility to Google ADK via MCP

Follow these steps to integrate the WCAG.com Accessibility MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 4 tools from WCAG.com Accessibility via MCP

Why Use Google ADK with the WCAG.com Accessibility MCP Server

Google ADK provides unique advantages when paired with WCAG.com Accessibility through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with WCAG.com Accessibility

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine WCAG.com Accessibility tools with BigQuery, Vertex AI, and Cloud Functions

WCAG.com Accessibility + Google ADK Use Cases

Practical scenarios where Google ADK combined with the WCAG.com Accessibility MCP Server delivers measurable value.

Enterprise data agents: ADK agents query WCAG.com Accessibility and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine WCAG.com Accessibility tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query WCAG.com Accessibility regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including WCAG.com Accessibility

WCAG.com Accessibility MCP Tools for Google ADK (4)

These 4 tools become available when you connect WCAG.com Accessibility to Google ADK via MCP:

audit_url_accessibility

1 standards to identify accessibility issues and compliance markers. Perform a WCAG accessibility audit on a specific URL

check_api_status

com Accessibility API. Check if the WCAG.com service is operational

get_wcag_guideline_details

Get detailed metadata and recommendations for a specific WCAG guideline

list_accessibility_rules

List all accessibility rules used by the WCAG auditing engine

Example Prompts for WCAG.com Accessibility in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with WCAG.com Accessibility immediately.

"Perform an accessibility audit on 'https://example.com' using WCAG.com."

"What are the requirements for WCAG guideline '1.1.1'?"

"List all accessibility rules used by the engine."

Troubleshooting WCAG.com Accessibility MCP Server with Google ADK

Common issues when connecting WCAG.com Accessibility to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

WCAG.com Accessibility + Google ADK FAQ

Common questions about integrating WCAG.com Accessibility MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.