Node.js/TypeScript MCP server for Atlassian Confluence. Provides tools enabling AI systems (LLMs) to list/get spaces & pages (content
c2n Web Components is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Exact APIs, examples, theme tokens and markup validation for the c2n (c2-*) Lit web components.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user c2n-web-components-mcp '--' npx -y @c2n/mcp
# 2 — ask your agent for something these tools do
# list_components, get_component, search_components and 7 more
c2n Web Components costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts c2n Web Components as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user c2n-web-components-mcp '--' npx -y @c2n/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Nothing is required, but it can take C2N_PROJECT_ROOT (Project whose installed @c2n/* packages the server reports. Defaults to the working directory.) if you want to set it.
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
10 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Read from its source code. A server that builds its tool list when it starts can list more tools than this.
Lists every c2n component (tag, package, category, one-line description, installed version in the current project).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| category | string | no | Only this category |
| keyword | string | no | Substring filter on tag, title or description |
| installedOnly | boolean | no | Only packages installed in the current project |
| format | string | no | Output format |
Full API of one component: install/import lines, attributes, slots, events, native CSS parts, CSS variables grouped by semantic target and state (with the theme token each follows), composition and preset names. Examples are served by get_examples.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tag | string | yes | Component tag, id or package: c2-button, button, @c2n/button, c2-tab, or a concrete icon tag such as c2-feather-arrow-right |
| include | array | no | Sections to include (default: all) |
| format | string | no | Output format |
Free-text search across component names, descriptions, attributes, slots, events, example labels and icon names. Use it to find the component for a UI need ("dropdown", "dialog", "avatar with status", "arrow icon").
No parameter schema on file.
Markup examples of a component: usage rows from the docs, styled gallery cards (the looks shown on the docs site, each with a summary of what it changes and light/dark screenshots) and the landing preview. Start with view: "index" to see every look on one page, then fetch the chosen card by its…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tag | string | yes | Component tag, id or package: c2-button, button, @c2n/button, c2-tab, or a concrete icon tag such as c2-feather-arrow-right |
| view | string | no | index: one line per example (label, slug, summary, screenshot), no code and no paging; full: markup and CSS |
| kind | string | no | Only this kind |
| label | string | no | Substring filter on the example label, or a gallery slug from the index |
| section | string | no | Gallery section filter (e.g. "Variants", "Sizes") |
| query | string | no | Search label, section, description, use case, accessibility note and component tags |
| limit | integer | no | — |
| offset | integer | no | — |
| format | string | no | Output format |
Search every component's gallery for a look or a use case ("compact", "glass", "pill", "danger", "underline input", "KPI"): returns matching cards across components with their summary and screenshot. Fetch one with get_examples label: <slug>.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | The look or situation you want |
| tag | string | no | Limit to one component |
| limit | integer | no | — |
Curated presets of a component ("inspiration" looks): base markup plus each preset as CSS variable values and attributes.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tag | string | yes | Component tag, id or package: c2-button, button, @c2n/button, c2-tab, or a concrete icon tag such as c2-feather-arrow-right |
| name | string | no | Substring filter on the preset name |
| format | string | no | Output format |
The @c2n/theme design tokens (--c2-theme--*) with light/dark defaults, how to install and map your own tokens, and dark mode. With tag: which of that component's variables follow which token.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tag | string | no | Component tag, id or package: c2-button, button, @c2n/button, c2-tab, or a concrete icon tag such as c2-feather-arrow-right |
| format | string | no | Output format |
Turns CSS variable / attribute overrides of a component into copy-paste code: a CSS class, HTML + <style>, a Lit subclass registered under your own tag, or JSON. Validates variable and attribute names against the component API. Start from a curated preset with preset, or from a gallery card with…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tag | string | yes | Component tag, id or package: c2-button, button, @c2n/button, c2-tab, or a concrete icon tag such as c2-feather-arrow-right |
| name | string | yes | Class / tag name of the variant (kebab-case, must contain a hyphen, not c2-*) |
| css | object | no | Component CSS variables to fix, e.g. {"--c2-button__container--background-color": "var(--c2-theme--color-error)"} |
| attributes | object | no | Attributes to fix, e.g. {"running": "true"} |
| preset | string | no | Name of a curated preset to start from (its values are merged under css) |
| example | string | no | Gallery card to start from, by slug or label (get_examples view: index): its themed variables for this component are merged under css |
| html | string | no | Base markup; defaults to the example or preset markup, else <tag>Label</tag> |
| format | string | no | — |
Checks HTML, JSX, Vue, Svelte, Astro, Angular or Lit markup and CSS you wrote against the installed c2n API: native controls a c2-* element replaces (<button>, <input>, <select>, <textarea>, <dialog>, <details>, <progress>), unknown c2-* tags, attributes, slots, events and --c2-* variables (with…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| code | string | yes | The source to check: a component file, a template, a stylesheet or a snippet |
| filename | string | no | — |
| format | string | no | Output format |
The c2n application workflow guides: workflow (theme once, use tags, name what repeats), theming, variant-components, frameworks (plain HTML, Lit, Astro, React, Vue, SSR).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| topic | string | no | — |
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install c2n Web Components or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tools were statically extracted from the published source (10 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| list_components | no tags | |
| get_component | no tags | |
| search_components | no tags | |
| get_examples | untrusted-input | untrusted-input: keyword "fetch" |
| search_examples | untrusted-input | untrusted-input: keyword "fetch" |
| get_presets | no tags | |
| get_theme | no tags | |
| generate_variant | no tags | |
| validate_markup | no tags | |
| get_workflow_guide | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 1.0.21. Pin a release below and the command asks for exactly that one.
No release note was published with this version.
No release note was published with this version.
- The version this listing was on when mcprush began following its releases. The registry was not asked when it shipped, so this row carries no date.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish c2n Web Components can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.