Bring Wcag
to OpenAI Agents SDK
Create your Vinkius account to connect Color Contrast Checker to OpenAI Agents SDK and start using all 8 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the Color Contrast Checker MCP Server?
Connect Color Contrast Checker to your AI agent and validate WCAG accessibility compliance for any color combination.
What you can do
- Custom Contrast Checks — Test any foreground/background color pair against WCAG AA and AAA standards
- Preset Scenarios — Quickly check text on white, text on black, white text on colors, and black text on colors
- Dark Mode Validation — Verify color contrast for dark mode UI designs
- Light Mode Validation — Ensure readability in light theme interfaces
- Accessibility Reporting — Get instant pass/fail reports with contrast ratios
How it works
- Subscribe to this server
- Enter your Apify API key
- Start checking color contrast from Claude, Cursor, or any MCP-compatible client
Who is this for?
- UI/UX Designers — validate design system colors meet accessibility requirements
- Web Developers — check contrast ratios during development without leaving the editor
- Accessibility Auditors — batch-verify color compliance across design tokens
Built-in capabilities (8)
Check contrast of pure black text against a specific background
1 contrast ratio for a specific foreground and background color pair to audit visual accessibility. Check the WCAG contrast ratio between a foreground and background color
Check contrast of standard danger/error red text on a background
Check contrast against a standard dark mode surface
Check contrast against a standard light mode surface
Check contrast of a text color against a pure black background
Check contrast of a text color against a pure white background
Check contrast of pure white text against a specific background
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 8 tools from Color Contrast Checker through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Color Contrast Checker, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
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Native MCP integration via
MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety - —
Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure
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Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
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First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
Color Contrast Checker in OpenAI Agents SDK
Why run Color Contrast Checker with Vinkius?
The Color Contrast Checker connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 8 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Color Contrast Checker using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Color Contrast Checker and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Color Contrast Checker to OpenAI Agents SDK through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Color Contrast Checker for OpenAI Agents SDK
Every request between OpenAI Agents SDK and Color Contrast Checker is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
What accessibility standards does it check?
It checks against both WCAG 2.1 Level AA (minimum 4.5:1 for normal text, 3:1 for large text) and Level AAA (7:1 for normal text, 4.5:1 for large text).
How does the OpenAI Agents SDK connect to MCP?
Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.
Can I use multiple MCP servers in one agent?
Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.
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