Convert colours between hex, RGB, HSL, OKLCH and CMYK, and compute harmonies. Connect the official Color Companion MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http color-companion https://color-companion.gumballtools.com/api/mcpRun in your terminal, then restart Claude Code.
Color Companion · https://color-companion.gumballtools.com/api/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “analyse_color”: Convert a colour between every common notation and derive the colours that pair with it, plus WCAG contrast figures. Use this for any colou.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Color Companion holds up.
Operated by Color Companion (gumballtools.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Color Companion adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Color Companion in the gate directory. No sign-in needed.
Color Companion's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
analyse_color — Convert a colour between every common notation and derive the colours that pair with it, plus WCAG contrast figures. Use this for any colou
https://color-companion.gumballtools.com/api/mcpYes — Color Companion operates its own remote MCP server at color-companion.gumballtools.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Color Companion in the directory. No account or sign-in is needed. From then on, Color Companion's tools are available in every client you've connected to gate.
No. Color Companion runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Color Companion in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Color Companion in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
Get started free