Caliper UI MCP Server

by caliperui Your server? Claim it

answering

Caliper UI is answering right now. Last checked 7 min ago. It exposes 5 tools.

Find React UI components, read their docs, and get shadcn install commands.

Uptime history 10 hours of history

10 hours agonow

100.0%

Uptime 24h

34 of 34 checks

Tools

read from the server

1669 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Caliper UI every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add caliper --transport http https://caliperui.site/mcp

Settings → Connectors → Add custom connector, then paste this address

https://caliperui.site/mcp

~/.codex/config.toml

[mcp_servers.caliper]
url = "https://caliperui.site/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "caliper": {
      "url": "https://caliperui.site/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "caliper": {
      "type": "http",
      "url": "https://caliperui.site/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

component

get_component

A component's docs as Markdown: when to use it, install command, props for every part, keyboard and accessibility notes. Includes the usage example for Free parts, and for Pro parts when the caller has a licence.

get_component_source

Every source file the component needs, with the path to write it to. Pro parts need Authorization: Bearer <CALIPER_TOKEN> on the MCP connection and an active Pro or Team licence.

components

search_components

Find Caliper UI components, blocks and Pro screens by what they do (for example 'date range', 'billing usage', 'chat composer'). Returns names to pass to the other tools.

design

get_design_rules

The conventions to follow when building UI with Caliper UI in this project: tokens, hierarchy, focus, motion and interface copy.

install

get_install_command

The components.json registry config and the shadcn CLI command that installs the given parts with their dependencies.

Endpoints

URL	Transport	State	Latency	Checked
https://caliperui.site/mcp	streamable-http	answering	771 ms	7 min ago

Alternatives to Caliper UI

same job, measured the same way

Sundae UI

by sundaeui

Search 301 React components, read usage docs and get shadcn install commands for Sundae UI.

9 tools answering

tealmac UI

by tealmac

Search shadcn registry items, read props and get exact install commands for React components.

11 tools answering

Arc UI

by uiarc

React components and blocks with motion. Search docs, props and shadcn install commands.

5 tools answering

uibrik

by uibrik

Search 267 animated React components and get their props and source to install with shadcn.

4 tools answering

Blatui

by anousss007

shadcn/ui for Laravel Blade — discover, read and install BlatUI components, blocks and charts.

5 tools answering

Watermelon UI

by watermelon

Search free React, Tailwind, and shadcn components, blocks, and dashboards; get installable source.

8 tools answering

Aicanvas

by aicanvas-me

Browse and install 75+ free animated, shadcn-compatible React components from AI Canvas.

local only

Wensity

by wensity

Find, plan, and install Wensity UI React components and blocks into your project.

125 installs/wk local only

Caliper UI — questions

Answers built from our own checks of this server.

What can Caliper UI do?

It exposes 5 tools, read directly from the server on our last check. Among them: get_component, get_component_source, get_design_rules, get_install_command, search_components. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Caliper UI working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 34 of 34 checks got a reply (100.0%), average response time 1669 ms. The bar chart above shows every period we have measured.

How do I connect Caliper UI?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Caliper UI need an API key?

No. Caliper UI completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.