"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:
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Design quality gate for AI-generated UI: score any URL on 45 deterministic checks, A–F grade.
DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.
EasyGerber brings AI printed circuit board (PCB) design, layout, and routing to MCP-compatible assistants. Describe a circuit or start from firmware pin assignments, search published electronic components, and build schematics using catalog parts with their footprints and available 3D models. Create and revise boards, generate layouts with automatic component placement and routing, inspect previews, and check saved layouts for blocking design issues. Export manufacturing ZIPs containing Gerber and drill files, a bill of materials, and component placement data, or download an editable EasyGerber (.egb) file. Start without signing up. Your agent creates a private guest session for one board, including catalog access, edits, layout, checks, previews, and exports. Sign in through OAuth to work with saved account boards, access permitted organization boards, or save the guest design to your account. Guest support depends on your MCP client and installed integration.
Free premium UI components in plain HTML, CSS and vanilla JS, for AI coding assistants.
Animated UI components, shaders, templates and UI kits from HorizonX, exported into your code
Turn a document or an AI draft into a publish-ready PDF, with an automatic cover, table of contents, pagination and your saved branding.
A design harness for AI coding agents: design systems, design principles, icons and UI review.
Design your mobile app UI with AI, then have your coding agent build the real app from it.
Verified component catalog over remote MCP: agents pick component ids and get a stamped project repo that builds. Connect at https://www.botkelp.com/mcp. Auth: MCP OAuth 2.1, or a Bearer bk_live_ API key; initialize and tools/list are open.
Turn a prompt and a link into a branded, print-ready QR code that always scans.
Edit and publish your FramerToNextJS sites (converted Framer or AI-built) from Claude, Cursor or Codex. 19 tools: read pages, rewrite copy, restyle elements, add sections and pages, design Studio sites, manage CMS collections and items, then publish to your own host. OAuth with a read-only option, and MCP runs no model on FNJ's side. Requires an FNJ plan (Lifetime or any AI builder plan).
Screenplay and storyboard in your AI assistant: import scripts, edit scenes, build shots.
Build a WordPress website with AI from a brief, edit colours, fonts and copy, publish a live preview, and export to Elementor or Gutenberg. OAuth sign-in with a free UiChemy account.
Flett is a shared online whiteboard. Connect it to Claude, ChatGPT or Cursor and the AI draws straight onto your boards: flowcharts, mind maps and architecture diagrams made of shapes and arrows, documents, slides and designed pages, charts, maps and files. Everyone on the board sees it appear live and can move, edit and comment on everything, then present it or export it to PNG, PDF, PowerPoint or HTML. Sign-in is OAuth; reading boards is free.
AETumi MCP - Three.js/WebGL 3D web scenes, components & templates you own the source of.
Plan a built-in grill and outdoor kitchen: real MSRP, priced layouts, 3D renders and dealer quotes.
Logo, colors, typefaces, tone of voice and CSS theme of any brand, read from its own website.
Build, edit and publish AI-generated websites directly from your AI assistant. Connect securely with OAuth and turn a business brief into a live website. Create sites, compare design variations, refine pages and publish from chat.
Make and edit a hand-made link-in-bio page: add links, pick a look, publish.
Shared canvas for AI-assisted product design, visual feedback and interactive prototypes. Browser sign-in (OAuth) required. Website: https://enhancelabs.ai. Docs: https://app.enhancelabs.ai/docs.