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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "chart-color-system": {
      "type": "http",
      "url": "https://chart-color-mcp.vercel.app/mcp"
    }
  }
}

claude mcp add --transport http chart-color-system https://chart-color-mcp.vercel.app/mcp

[mcp_servers.chart-color-system]
url = "https://chart-color-mcp.vercel.app/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "chart-color-system": {
      "type": "remote",
      "url": "https://chart-color-mcp.vercel.app/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "chart-color-system": {
      "type": "http",
      "url": "https://chart-color-mcp.vercel.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=chart-color-system&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY2hhcnQtY29sb3ItbWNwLnZlcmNlbC5hcHAvbWNwIn0%3D"
}

{
  "servers": {
    "chart-color-system": {
      "type": "http",
      "url": "https://chart-color-mcp.vercel.app/mcp"
    }
  }
}

{
  "mcpServers": {
    "chart-color-system": {
      "httpUrl": "https://chart-color-mcp.vercel.app/mcp"
    }
  }
}

extensions:
  "chart-color-system":
    enabled: true
    name: "chart-color-system"
    type: streamable_http
    uri: "https://chart-color-mcp.vercel.app/mcp"
    timeout: 300

Quality 91 / 100strong

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 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 984 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

4 tools, about 984 tokens to load them all · tool set 715141180d3c · checked 2026-10-20 02:01 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 97 / 100

provenance90

liveness100

freshness100

hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% +updated-16d-ago

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://chart-color-mcp.vercel.app/mcp` streamable-http	none	yes	100%	256 ms	2025-11-25	2026-10-20

Tools (4)

`audit_palette`read-only	Audit existing chart colors for accessibility: pairwise OKLab separation under normal vision, deuteranopia, protanopia, tritanopia and achromatopsia, plus WCAG 2.2 non-text contrast (3:1) of every color against the chart background. Returns a pass / warn / fail verdict with the numbers behind it. Set ramp=true for sequential or diverging scales, whose steps are meant to be close.
`build_ramp`read-only	Build an evenly spaced perceptual (OKLab) color scale: sequential from start to end, or diverging from start through mid to end. Returns the steps and a background-contrast audit (pairwise separation is not judged for ramps).
`simulate_palette`read-only	Show what each color looks like to readers with deuteranopia, protanopia, tritanopia or achromatopsia (published Machado 2009 matrices), so an assistant can describe or render the palette as a colorblind reader sees it.
`solve_palette`read-only	Generate a categorical chart palette of n colors (1-12) that maximizes perceptual separation under normal vision and colorblindness, with the given brand colors locked as anchors in slot order. Returns the palette, the worst pair distances, the engine's relaxation notes, a full accessibility audit against the background, and a link to open it in the app. Honest cap is 6 slots; above that the result says so.

Schemas: list_tools.

Similar MCP servers

More from io.github.socraticstatic

Official server.json

{
  "name": "io.github.socraticstatic/chart-color-system",
  "icons": [
    {
      "src": "https://socraticstatic.github.io/Visualizations/plugin-icon.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://socraticstatic.github.io/Visualizations/apple-touch-icon.png",
      "sizes": [
        "180x180"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Chart Color System",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://chart-color-mcp.vercel.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.2",
  "repository": {
    "url": "https://github.com/socraticstatic/Visualizations",
    "source": "github",
    "subfolder": "mcp"
  },
  "websiteUrl": "https://socraticstatic.github.io/Visualizations/mcp-docs.html",
  "description": "Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only."
}