Arc UI MCP server

• get_componentFree

  Get full documentation for one Arc component or block: when to use it, when not to (with the better alternative), usage and extra examples, props, keyboard, accessibility, motion, responsive behavior, performance, keywords, related items, and the install command. structuredContent.api carries the same fields as JSON. With an Arc Pro token (Authorization header), Pro items also include their full source files in structuredContent.files.

• get_install_commandFree

  Get the shadcn CLI command that installs one or more Arc components or blocks, including shared foundation tokens and Arc dependencies, plus setup notes. Free items always; Pro items (@uiarc-pro registry) when the connection carries an Arc Pro token.

• get_skillFree

  Get one Arc skill file as markdown: rules for building with Arc. Free skills: SKILL (entry point: workflow, principles, never-do list, and quick decisions); INSTRUCTIONS (short always-on rules for agents.md, claude.md, or cursor rules); checklist (the review loop to run before finishing, with grep sweeps); components (choosing the right component or block by job, with ids); composition (page containers, dashboards, marketing sections, states, react correctness); copy (sentence case, no eyebrows or em dashes, verbs on buttons, honest claims); design (color, type, surfaces, concentric radii, spacing, and icons); motion (motion tokens, spring choice, patterns with code, reduced motion); accessibility (focus without rings, semantics, keyboard, and announcements); responsive (widths to check, overflow, tables, and touch targets); example-settings (a worked account settings page); example-pricing (a worked pricing section with plans, comparison, and faq); example-dashboard (a worked analytics overview with kpis, chart, and table). Pro skills (arc-pro, full-page-generation, page-composition, design-system-generation, refactor-to-arc, motion-recommendations, responsive-optimization, accessibility-audit) are returned in full when the connection carries an Arc Pro token (otherwise signed-in Pro members download them at /api/skills and this tool returns where).

• list_componentsFree

  List Arc components and blocks with name, description, tier, and links. Filter by category (Actions, Inputs, Disclosure, Feedback, Data, Text, Special, Blocks), tag, tier (free or pro), or kind (component or block).

• search_componentsFree

  Search Arc components and blocks by intent, e.g. "confirm destructive action", "date range", or "pricing page". Returns the best matches first.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1868ms20/20
• Tool poisoning5 tool descriptions checked15/15
• Auth qualityAPI key sent as a header8/15
• Maintenancelast push 0 days ago15/15
• Maintainer identityendpoint served from the registry-verified namespace domain8/10

Arc UI: common questions

Is Arc UI MCP server safe?

Yes, by our scan: it is graded A (88/100). Read the Arc UI safety report

How do I install Arc UI?

It runs remotely at uiarc.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Arc UI need an API key?

Yes. The registry entry asks for Authorization.

Is Arc UI maintained?

The last commit was 13 days ago (2026-09-30). The latest release is v1.0.0.

Is Arc UI up?

100% of our last 28 checks got an answer. We check remote servers about four times a day.

What can I use instead of Arc UI?

Servers from other publishers that do the same job: Starwind UI MCP Server, Electrik Slate MCP server and pmndrs docs MCP server. Compare all Arc UI alternatives.