ChatGPT companion

Same engine as the site: vision (or your description) → analysis JSON → three palettes of real database colors. Never invent names or codes.

a) Custom GPT (Actions)

Import Actions from /openapi.json. Instructions live in docs/paint-chatgpt-gpt-instructions.md in the repo. Auth: Bearer PAINT_API_KEY.

b) ChatGPT App (MCP)

MCP endpoint: https://finchfile.com/mcp. Tools: create_palette, match_hex, get_color. After a tool returns, render each color as a swatch (hex background) with brand, name, and code — never as a made-up name.

FinchFile · How it works