"Free tools or resources that do not require an API" matching MCP servers:

Enables Claude to connect to Figma without a paid plan, offering auto-connect and 100+ tools for document manipulation, design system sync, and code-to-Figma conversion.

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).

Enables coding agents to search and retrieve 500+ production-ready React and Tailwind UI sections, page recipes, and brand-styled components over MCP, along with imagery and social post templates.

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 color conversion between HEX/RGB/HSL/HSV/CMYK, palette generation, WCAG contrast checking, color mixing/adjustment, and CSS gradient creation for AI agents.

Provides AI assistants with frontend development tools including component scaffolding, bundle analysis, accessibility checks, and responsive design guidance. Enables automated generation of React components with tests and stories, bundle optimization recommendations, and WCAG compliance fixes.

Enables rigging, animation, and VFX workflows for Roblox through an MCP-compatible chat client, connecting Blender and Roblox Studio for tasks like skeleton fitting, keyframe editing, particle effects, and FBX export.

A comprehensive MCP server for Vue component development and Figma design restoration, featuring snapDOM-powered screenshots, pixel-perfect visual comparison, and automated SVG optimization.

Enables conversion of Figma designs into frontend code (React, Vue, HTML, etc.) with high fidelity, including design tokens, assets, and responsive layout. Integrates with AI editors via MCP for a seamless design-to-code workflow.

Enables agents to search a fully local catalog of 21st-style shadcn components via full-text search, inspect individual records, generate reusable build prompts, retrieve install steps, and fetch design tokens for aesthetic keywords. Runs entirely offline over stdio with no API keys, paywalls, or rate limits.

Aggregates GitHub, GitLab, and Figma development tools via MCP, enabling file access, code search, and design inspection. Also supports executing standalone tasks with Claude Code or Codex CLI.

Connects an AI agent to Adobe Photoshop through COM/ExtendScript so it can build and correct designs —layers, typography, vector shapes, layer effects, blend modes, masks, adjustments and filters— while previewing its own output, inspecting a document's resources, and learning a reusable style from the user's finished PSDs.

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

Enables AI assistants to create and edit pixel art and animated sprites in Aseprite through 104 tools covering drawing, layers, animation, palettes, tilemaps, exports, visual analysis, and raw Lua scripting.

Enables AI assistants to control Aseprite for creating pixel art and animated sprites, with 104 tools covering canvas, drawing, animation, palettes, effects, and more.

A Python MCP server that gives AI assistants full control over Aseprite for creating pixel art and animated sprites. It provides 104 tools across 17 categories for canvas, drawing, layers, animation, palettes, effects, and more.

Enables agents to extract, inspect, search, and bundle design context from local Figma .fig files entirely offline, exposing frame summaries, node context, style tokens, assets, vector SVGs, and visual-match review via MCP.

Provides AI-powered tools for UX/UI review, web component generation, and code refactoring using Google Gemini.

Enables AI agents to diagnose, modify, and validate OTF/TTF fonts interactively through a set of read-only, write, and validation tools.

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