"Automatic Data Visualization Tool (No API Key Required)" matching MCP servers:

Every other colour API tells you what goes together. Colour Memory tells you what it means, where the evidence ends, and what it must not claim. 47,515 hand-researched records, graded A–E, every result cited. 91 specialist tools built for agents that need precision, not guesses. Direct MCP: https://api.colourmemory.com/mcp — no signup, no key for the free tools (10 calls).

An MCP server that provides headless, read/write access to Photopea for image editing, including layers, text, filters, and document operations, enabling agents to edit images programmatically.

Enables AI assistants to programmatically customize Shopify Plus checkout branding, including colors, typography, logos, and design systems, with safety defaults for production updates.

Enables MCP/AI clients to read project state and execute protected PCB operations in EasyEDA Pro via a local Bridge and official extension APIs.

FastMCP-based tool for extracting UI component code from Uiverse.io, supporting HTML/CSS, React, Vue, Svelte, and Lit frameworks.

Controls a running KiCad 9+ instance via the official IPC API, enabling board edits, queries, and exports without reload.

A comprehensive Model Context Protocol (MCP) server for interacting with Canva's API. It enables managing designs, brands, assets, and users through natural language.

Enables AI assistants to create Material Maker node graphs from natural language, validate them against the node catalog, and render them headlessly to PBR texture maps and editable .ptex files.

Generates harmonious color palettes from any hex color with multiple schemes, returning hex, RGB, HSL, and CSS vars. Pay-per-call via x402 micropayments.

Enables Claude to generate and iterate on UI mockups using OpenUI Lang against a shadcn/ui palette, with live preview and auto-persisted assemblies that can be updated in place.

Enables AI assistants to generate styled QR codes with customizable colors, styles, gradients, and frames, as well as typed QR codes for WiFi, vCard, etc., using the QRMint API without requiring an API key.

Enables 2D irregular polygon nesting (bin-packing) with tools to design, preview, get reports, and export DXF files for laser cutting or CNC routing.

Search 161,000+ free hand-drawn Infyicon icons in four matching styles and fetch ready-to-embed SVG markup or PNG URLs, plus CSS class lookup for the 61,000-glyph Infyicon UI webfont. Free with attribution, no API key required.

MCP server for Uiverse.io that lets AI agents browse, search, and fetch open-source UI components (HTML + CSS) directly in their editor. No API key required, it indexes 3,800+ components locally.

Provides read-only access to over 100 UX/UI design checklists from Checklist.design, enabling users to search and retrieve design guidance for specific flows and screens. Runs locally without an API key.

The Figma desktop app as an MCP server. Gives AI agents the full Figma Plugin API on your open file: read, write, tokens, components, exports, undo. Runs locally with no cloud API, no token and no quota.

Calculates 3D printing cost, time, material weight and build-plate fit from plain dimensions given in the conversation, with no STL upload and no API key. Covers PLA, PETG, ABS, ASA, TPU, Nylon, PC and PLA-CF, plus build volumes for Bambu Lab, Prusa, Creality, Voron and Elegoo printers.

figmcp gives your coding agent the Figma file you have open in Figma Desktop. A development plugin streams the file to a server on your machine over localhost, so reads never touch the Figma REST API: no access token, no quota and no rate limits, on any Figma plan. * Design to code: Flutter widgets for Flutter projects, React + Tailwind for everything else, with assets and a scree

AI design fidelity — compare Figma designs or screenshots against the rendered implementation and get structured discrepancies. Uses your Claude Code or Codex subscription, no API keys.

MCP server for RenderForm API, enabling automatic generation of images, PDFs, screenshots, and videos from templates, along with management of renders, templates, fonts, and organization usage.