Chart Color System for ChatGPT

io.github.socraticstatic/chart-color-system

Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.

client:ChatGPT transport:streamable-http tools:4

Install Chart Color System in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://chart-color-mcp.vercel.app/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs