Contrast Checker MCP Server

by ogsingh Your server? Claim it

local only

Contrast Checker MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 45 installs a week from npm. Last commit 25 Feb 2026.

MCP - WCAG 2.1 color contrast checker - contrast ratios, compliance and accessible color suggestions

Installs per day peak 11 · avg 5 · +28% w/w

a month agotoday

Installs / week

npm · contrast-checker-mcp

Stars

0 open issues

25 Feb 2026

Last commit

no releases in 90 days

Apache-2.0

License

TypeScript

Nothing serious here today

Today is the operative word: we check Contrast Checker MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add contrast-checker-mcp -- npx -y contrast-checker-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "contrast-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.contrast-checker-mcp]
command = "npx"
args = ["-y", "contrast-checker-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "contrast-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "contrast-checker-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp"
      ]
    }
  }
}

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Contrast Checker MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Contrast Checker MCP?

Contrast Checker MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package contrast-checker-mcp was installed 45 times last week.

How do I connect Contrast Checker MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls contrast-checker-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Contrast Checker MCP?

The npm package contrast-checker-mcp was installed 45 times in the last week. Week over week that is +28%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Contrast Checker MCP open source?

Yes — it is published under the Apache-2.0 licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.