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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "contrastkit": {
      "type": "http",
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp"
    }
  }
}

claude mcp add --transport http contrastkit https://contrastkit.mike-tusa.workers.dev/mcp

[mcp_servers.contrastkit]
url = "https://contrastkit.mike-tusa.workers.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "contrastkit": {
      "type": "remote",
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "contrastkit": {
      "type": "http",
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=contrastkit&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY29udHJhc3RraXQubWlrZS10dXNhLndvcmtlcnMuZGV2L21jcCJ9"
}

{
  "servers": {
    "contrastkit": {
      "type": "http",
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "contrastkit": {
      "httpUrl": "https://contrastkit.mike-tusa.workers.dev/mcp"
    }
  }
}

extensions:
  "contrastkit":
    enabled: true
    name: "contrastkit"
    type: streamable_http
    uri: "https://contrastkit.mike-tusa.workers.dev/mcp"
    timeout: 300

Quality 100 / 100strong

protocol100 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
pass
protocol.list_ttltool list is cacheable (ttlMs 3600000)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene100 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 947 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump
pass
tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name
pass
stability.new_linksno tool change named a new site

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 947 tokens to load them all · tool set 3ffb15a0b6fd · checked 2026-11-14 07:36 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository

provenance55

liveness98

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-95% +updated-23d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://contrastkit.mike-tusa.workers.dev/mcp` streamable-http	none	yes	95%	151 ms	2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05	2026-11-14

Tools (4)

`check_contrast`read-only	Compute the WCAG 2.x contrast ratio between a text (foreground) color and a background color, with pass/fail for AA, AA large text, AAA, AAA large text and non-text UI (3:1). Handles translucent colors. Read-only. Same engine as GET /api/contrast.
`check_palette`read-only	Contrast ratio for every pair of 2 to 12 colors (up to 66 pairs), highest first, each flagged against the chosen WCAG level. Use it to see which brand colors can be used together for text. Read-only. Same engine as GET /api/palette.
`convert_color`read-only	Convert a CSS color to hex, rgb() and hsl(), with its relative luminance, its contrast on white and on black, and the better text color (black or white) to put on it. Read-only. Same engine as GET /api/convert.
`suggest_accessible_color`read-only	For a failing color pair, find the closest color (same hue and saturation, lightness changed as little as possible) that meets the chosen WCAG level. Adjust the foreground (default), the background, or both (best first). Read-only. Same engine as GET /api/suggest.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.workers.mike-tusa.contrastkit/contrastkit",
  "icons": [
    {
      "src": "https://contrastkit.mike-tusa.workers.dev/favicon.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "ContrastKit",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.0",
  "websiteUrl": "https://contrastkit.mike-tusa.workers.dev/",
  "description": "WCAG color contrast checks, nearest accessible color, CSS color conversion and palette pair checks."
}