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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "coolours": {
      "type": "http",
      "url": "https://coolours.perpetualsummer.ltd/mcp"
    }
  }
}

claude mcp add --transport http coolours https://coolours.perpetualsummer.ltd/mcp

[mcp_servers.coolours]
url = "https://coolours.perpetualsummer.ltd/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "coolours": {
      "type": "remote",
      "url": "https://coolours.perpetualsummer.ltd/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "coolours": {
      "type": "http",
      "url": "https://coolours.perpetualsummer.ltd/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=coolours&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY29vbG91cnMucGVycGV0dWFsc3VtbWVyLmx0ZC9tY3AifQ%3D%3D"
}

{
  "servers": {
    "coolours": {
      "type": "http",
      "url": "https://coolours.perpetualsummer.ltd/mcp"
    }
  }
}

{
  "mcpServers": {
    "coolours": {
      "httpUrl": "https://coolours.perpetualsummer.ltd/mcp"
    }
  }
}

extensions:
  "coolours":
    enabled: true
    name: "coolours"
    type: streamable_http
    uri: "https://coolours.perpetualsummer.ltd/mcp"
    timeout: 300

Quality 85 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

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 hygiene86 · 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.annotations3 of 3 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: export_palette (destructiveHint, idempotentHint); parse_palette_link (destructiveHint, idempotentHint); create_palette_link (destructiveHint, idempotentHint)
pass
tools.token_costabout 593 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

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

3 tools, about 593 tokens to load them all · tool set 20f486b3a263 · checked 2026-10-20 18:06 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 83 / 100

no-repository

provenance55

liveness100

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-13d-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://coolours.perpetualsummer.ltd/mcp` streamable-http	none	yes	100%	667 ms	2025-11-25	2026-10-20

Tools (3)

`create_palette_link`read-only	Turn a colour palette you have chosen into a link that opens it in Coolours (coolours.perpetualsummer.ltd), where the user can preview the swatches, tweak them and export them. Use this whenever you propose a colour scheme, so the user can see it rather than read hex codes. Also returns WCAG contrast ratios for every pair of colours: check them before recommending a text/background pairing (4.5 or more for body text, 3 or more for large text and UI components). Returns each colour's Coolours name: use those names when presenting the palette. Also returns the palette as CSS custom properties: whenever you show CSS, use it exactly as given rather than writing your own. Give the user the URL.
`export_palette`read-only	Export a palette as CSS custom properties or a JavaScript object, with each colour named after its nearest named colour. Output matches Coolours' own Export feature. create_palette_link already returns the CSS; use this for the JS object, or for a palette you didn't create. Use the output as given: its names match the Coolours UI.
`parse_palette_link`read-only	Read the colours and name back out of a Coolours link (coolours.perpetualsummer.ltd/create/...). Use this when the user pastes a Coolours URL, for example after editing a palette on the site, so you can apply their changes.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "ltd.perpetualsummer/coolours",
  "icons": [
    {
      "src": "https://coolours.perpetualsummer.ltd/favicon-32x32.png",
      "sizes": [
        "32x32"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://coolours.perpetualsummer.ltd/favicon-96x96.png",
      "sizes": [
        "96x96"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://coolours.perpetualsummer.ltd/android-chrome-192x192.png",
      "sizes": [
        "192x192"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://coolours.perpetualsummer.ltd/android-chrome-512x512.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Coolours",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://coolours.perpetualsummer.ltd/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.2.1",
  "websiteUrl": "https://coolours.perpetualsummer.ltd",
  "description": "Turn AI-designed colour palettes into Coolours links, with colour names, CSS and contrast checks"
}