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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "arc": {
      "type": "http",
      "url": "https://uiarc.dev/api/mcp",
      "headers": {
        "Authorization": "Bearer ${ARC_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http arc https://uiarc.dev/api/mcp --header "Authorization: Bearer ${ARC_TOKEN}"

[mcp_servers.arc]
url = "https://uiarc.dev/api/mcp"
bearer_token_env_var = "ARC_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "arc": {
      "type": "remote",
      "url": "https://uiarc.dev/api/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:ARC_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "arc": {
      "type": "http",
      "url": "https://uiarc.dev/api/mcp",
      "headers": {
        "Authorization": "Bearer ${ARC_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=arc&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vdWlhcmMuZGV2L2FwaS9tY3AiLCJoZWFkZXJzIjp7IkF1dGhvcml6YXRpb24iOiJCZWFyZXIgJHtBUkNfVE9LRU59In19"
}

{
  "servers": {
    "arc": {
      "type": "http",
      "url": "https://uiarc.dev/api/mcp",
      "headers": {
        "Authorization": "Bearer ${ARC_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "arc": {
      "httpUrl": "https://uiarc.dev/api/mcp",
      "headers": {
        "Authorization": "Bearer ${ARC_TOKEN}"
      }
    }
  }
}

extensions:
  "arc":
    enabled: true
    name: "arc"
    type: streamable_http
    uri: "https://uiarc.dev/api/mcp"
    headers:
      "Authorization": "Bearer ${ARC_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${ARC_TOKEN}. The registry never accepts secret values.

Quality 96 / 100strong

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorization100 · weight 15

pass
auth.prmProtected Resource Metadata (RFC 9728) published
pass
auth.as_metadataauthorization server metadata reachable
pass
auth.cimdClient ID Metadata Documents supported
n/a
auth.secret_in_urlno templated URL

tool hygiene93 · weight 30

pass
tools.descriptionsevery tool has a description
warn
tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations5 of 5 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 1,202 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

5 tools, about 1,202 tokens to load them all · tool set e1d698e19309 · checked 2026-10-19 11:27 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 95 / 100

provenance85

liveness99

freshness100

hygiene100

+repository +dns-namespace +website +reachable +uptime-99% +updated-19d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://uiarc.dev/api/mcp` streamable-http	oauth2 AS: https://clerk.uiarc.dev	yes	99%	1412 ms	–	2026-10-19

Tools (5)

`get_component`read-only	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_command`read-only	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_skill`read-only	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_components`read-only	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_components`read-only	Search Arc components and blocks by intent, e.g. "confirm destructive action", "date range", or "pricing page". Returns the best matches first.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.uiarc/arc",
  "icons": [
    {
      "src": "https://uiarc.dev/icon-512.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Arc UI",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://uiarc.dev/api/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional. \"Bearer arc_pro_...\" from uiarc.dev/account unlocks Arc Pro source. Free items work without it."
        }
      ]
    }
  ],
  "version": "1.0.0",
  "repository": {
    "url": "https://github.com/kuratlielia/arc-library",
    "source": "github"
  },
  "websiteUrl": "https://uiarc.dev",
  "description": "React components and blocks with motion. Search docs, props and shadcn install commands."
}