"Using PostgreSQL with n8n Workflow Automation" matching MCP connectors:
Matching Connector Tools:
A complete color workflow over MCP: mix, convert, harmonize, measure, and remember palettes.
rnv-color-mcp, a hosted color-workflow MCP server (Python, Streamable HTTP). Tools: mix (including Kubelka-Munk paint physics), convert between formats, generate harmonies, transform text case, and save/list/get named palettes. It resolves hex / CSS / custom brand color names and refuses unknown colors rather than guessing.
Design review for UI code: 291 rules, scored 0-100 with fixes and git-applyable patches.
Multilingual semantic SVG icon search with previews for AI coding agents. 20,000+ icons.
Build a landing page from a short brief in your IDE chat and deploy it to Layero — 5 design systems × 6 structures, form submissions wired to Telegram or Google Sheets. Servers and CDN inside Russia, so pages load fast for Russian users without a VPN. Works in Claude Code, Cursor and Codex. Not to be confused with Layer0 / Edgio, or with layero.com — unrelated products.
Opens, inspects, and renders DXF/CAD drawings for AI agents: describe_dxf returns structured facts (layers with actual drawn colors, units, bounds, text content) and render_dxf returns PNG images. On MCP Apps hosts like ChatGPT and Claude, view_dxf opens an interactive in-chat viewer with pan, zoom, and layer toggles.
Color Pizza MCP — names hex colors using human-friendly color-name lists.
Colour intelligence API with 23,000+ historically grounded colours across 59 archives. Maps hex values to named archive colours with provenance, cultural risk, WCAG accessibility, and brand palette analysis.
Create high quality presentations with AI
Intelligent product canvas with context and taste — connect your coding agent to iterate on your product's design, from sweeping new flows down to surgical tweaks, and sync it back to your code.
Build and manage your design system with AI: tokens, themes, components, icons, Figma and code.
Search and browse the EpicPxls design-asset marketplace — 65K+ UI kits, fonts, mockups, icons, and templates with commercial licenses and editable Figma/Sketch/PSD source files. Read-only, no auth: search items, get item details, list categories, fetch free assets, and extract color palettes.
Create, read and live-edit visual boards, Kanban plans, Gantt timelines and diagrams with AI agents.
Search 21st.dev UI components & themes, get their code, and generate new ones with 21st AI.
Optical design, simulation and analysis with GPU-powered ray tracing. Import from Zemax and CAD.
Photorealistic PSD product mockups: place artwork, edit text with 2,000+ fonts, render.
Intelligent product canvas: iterate on your product's design with your coding agent, synced to code.
Search real-world UI & UX design references for mobile apps, web apps, and websites with Mobbin.
AI listing workflow for Etsy sellers: listings, images, mockups, KDP copy & ad copy. 14 tools.