MCP Server

Color Companion MCP Server

com.gumballtools/color-companion

What is the Color Companion MCP server?

Convert colours between hex, RGB, HSL, OKLCH and CMYK, and compute harmonies.

Copy-paste configuration for popular MCP clients.

transport: http

Config generated by PluginBench — verify against the source before use.

~/.cursor/mcp.json

{
  "mcpServers": {
    "color-companion": {
      "url": "https://color-companion.gumballtools.com/api/mcp"
    }
  }
}

Estimate a due date from LMP, conception, or ultrasound, with ACOG redating rules.

Step-by-step solver for linear/quadratic equations in one variable, signs and ± always right.

ISO 8601 week numbers: date to week, week to date, weeks-per-year.

Convert JSON samples into TypeScript interfaces and Zod schemas, with inference caveats.

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

Round cash totals to the nearest nickel correctly — after tax, on the total, cash only.