4,000+ servers built on MCP Fusion
Vinkius
OpenAI Agents SDKSDK
OpenAI Agents SDK
Why use Color Contrast Checker MCP Server with OpenAI Agents SDK?

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.

MCP Inspector GDPR Free for Subscribers
Check Black Text On BgCheck Color ContrastCheck Danger Text ContrastCheck Dark Mode SurfaceCheck Light Mode SurfaceCheck Text On Pure BlackCheck Text On Pure WhiteCheck White Text On Bg
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Color Contrast Checker

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

  1. Subscribe to this server
  2. Enter your Apify API key
  3. 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_black_text_on_bg

Check contrast of pure black text against a specific background

check_color_contrast

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_danger_text_contrast

Check contrast of standard danger/error red text on a background

check_dark_mode_surface

Check contrast against a standard dark mode surface

check_light_mode_surface

Check contrast against a standard light mode surface

check_text_on_pure_black

Check contrast of a text color against a pure black background

check_text_on_pure_white

Check contrast of a text color against a pure white background

check_white_text_on_bg

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.

  • 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

  • Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

  • First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

O
See it in action

Color Contrast Checker in OpenAI Agents SDK

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

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.

Color Contrast Checker
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* 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

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

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.

Why Vinkius

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.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

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.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

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).

02

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.

03

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.

04

Does the SDK support streaming responses?

Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.

05

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

06

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

Explore More MCP Servers

View all →