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io.github.UI5/webcomponents-react-mcp-server

NPM · @UI5/WEBCOMPONENTS-REACT-MCP · SCANNED SEP 20

MCP server for UI5 Web Components for React - Developer documentation and API assistance

−1 this week 93 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security98
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • No install/post-install scripts declared.Pass
  • 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency97
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Cryptographically verified build provenance (signed, bound to UI5/webcomponents-react). View diagnostics → Pass
  • Clear OSI-approved license (Apache-2.0).Pass
  • Actively maintained (last published 4 days ago).Pass
  • Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability75
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 1873 tokens (~312/item across 6 items; 5 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
  • Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (20% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the io.github.UI5/webcomponents-react-mcp-server server?

io.github.UI5/webcomponents-react-mcp-server runs locally as an npm package, launched with npx -y @ui5/webcomponents-react-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

npm · @ui5/webcomponents-react-mcp

# add to Claude Code
claude mcp add ui5-webcomponents-react-mcp-server -- npx -y @ui5/webcomponents-react-mcp
// .cursor/mcp.json
{
  "mcpServers": {
    "ui5-webcomponents-react-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@ui5/webcomponents-react-mcp"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "ui5-webcomponents-react-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@ui5/webcomponents-react-mcp"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add ui5-webcomponents-react-mcp-server -- npx -y @ui5/webcomponents-react-mcp
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ui5-webcomponents-react-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@ui5/webcomponents-react-mcp"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add ui5-webcomponents-react-mcp-server --command npx --arg -y --arg @ui5/webcomponents-react-mcp
# ~/.hermes/config.yaml
mcp_servers:
  ui5-webcomponents-react-mcp-server:
    command: "npx"
    args: ["-y", "@ui5/webcomponents-react-mcp"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "ui5-webcomponents-react-mcp-server": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@ui5/webcomponents-react-mcp"
      ]
    }
  }
}
# add to Vellum
assistant mcp add ui5-webcomponents-react-mcp-server -t stdio -c npx -a -y @ui5/webcomponents-react-mcp
// mcp.json
{
  "mcpServers": {
    "ui5-webcomponents-react-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@ui5/webcomponents-react-mcp"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 20 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 17 Sept 26 −2
    • Security disclosure: unverified → fail functional
    • Stability: pass → 0.80 functional
  • 16 Sept 26 +15
    • Malware scan: unverified → pass security
    • Stability: 0.97 → pass security
    • Security disclosure: fail → unverified functional
  • 15 Sept 26 +1
    • Malware scan: unverified → pass security
    • Package version: 2.26.2 → 2.26.3 functional
  • 14 Sept 26 −16
    • Malware scan: pass → unverified security
    • Stability: pass → 0.93 functional
    • Package version: 2.26.1 → 2.26.2 functional
  • 13 Sept 26 0
    • Stability: 0.97 → pass security
  • 12 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 11 Sept 26 0
    • Stability: 0.90 → unverified security
    • Tool safety: pass → unverified security
    • Capabilities: pass → unverified functional
    • Tool coverage: 100 → unverified functional
    • Schema quality: 100 → unverified functional
    • Package version: 2.26.0 → 2.26.1 functional
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Analysed npm/@ui5/webcomponents-react-mcp@2.26.3

Provenance Verified

A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.

Result Verified
Ecosystem npm
Reason Verified
Discovered via Registry attestation endpoint
Source repo UI5/webcomponents-react
Certificate issuer https://token.actions.githubusercontent.com
Certificate SAN https://github.com/UI5/webcomponents-react/.github/workflows/release.yml@refs/heads/main
Rekor log index 2845221197
Predicate type https://slsa.dev/provenance/v1
Subject digest sha512:7310be1c308ef5b571e14400bd8e743b9a099bc095c944c002513bfb99fea4935e9467c8e7b57048c31fe9e8ca94d6e1f476067e2991a03b1a9a3d13c

Background: How many MCP packages publish verified provenance →

Dependencies 96 packages
Packages resolved 96
Stale 31
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 5 exposed · ~1,853 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
create_app ~236

Get scaffolding instructions for a new UI5 Web Components for React application from an official template. WHEN TO USE: The user wants to create a new app, project, or starter using UI5 Web Components for React. WORKFLOW: Call this tool to get the template setup instructions, then execute them. Available templates: - `nextjs-app` — Next.js (App Router) - `nextjs-pages` — Next.js (Pages Router) - `vite-ts` — Vite.js - `preact-vite-ts` — Preact (Vite.js) - `preact-ssr-ts` — Preact (Vite.js + SSR) EXAMPLE INPUT: { "template": "vite-ts", "appName": "my-app" } EXAMPLE INPUT: { "template": "nextjs-app", "appName": "my-dashboard" }

NameTypeReqDescription
appNamestringyesName for the new application directory
templatestringyesTemplate to use. Available: nextjs-app, nextjs-pages, vite-ts, preact-vite-ts, preact-ssr-ts

No output schema declared.

No examples provided.

get_component_api ~767

Get comprehensive API documentation for a UI5 Web Components React component including props, ref methods, types, event detail parameters, and CSS parts for shadow DOM styling. WHEN TO USE: You need exact prop names, types, default values, method signatures, event detail fields, or CSS part selectors for a specific component. DO NOT USE FOR: General guidance on styling, events, or architecture — use get_documentation instead. To discover component names — use list_components first. WORKFLOW: Use list_components to find the correct component name, then this tool for full API details. LIMITS: Returns data for one component per call. Returns all props and methods for that component. EXAMPLE INPUT: { "componentName": "Dialog" } **Output Format (JSON):** ```typescript { package: string, // NPM package name description: string, // Full JSDoc description with @tags, examples, notes props: { [propName: string]: { type: { name: string, // Type category (e.g., "string", "boolean", "enum") raw?: string, // Full TypeScript type string value?: Array<{ // For enums: possible values with descriptions value: string, description?: string }> }, required: boolean, // Whether prop is required defaultValue: any, // Default value if specified description: string, // Full prop description with notes eventDetail?: { // Present on event handler props (web components only) params: Array<{ // Fields available on e.detail name: string, // e.g., "targetRef", "escPressed", "item" type: string, // e.g., "HTMLElement", "boolean" description: string // What this detail field contains }>, cancelable: boolean, // true = e.preventDefault() prevent…

NameTypeReqDescription
componentNamestringyesComponent name (e.g., "Button", "AnalyticalTable"). Case-insensitive. Must match a component from @ui5/webcomponents-react, @ui5/webcomponents-react-charts, or @ui5/webcomponents-ai-react.
NameTypeReqDescription
_metaobject
availableComponentsarrayList of all valid component names (only present on not_found errors)
cssPartsarrayCSS ::part() selectors for shadow DOM styling
descriptionstringFull component description
docUrlstringLink to upstream documentation for complex behavioral concepts (e.g. layout algorithms)
errorstringError message if component not found
errorTypestringSemantic error type for programmatic handling
isAbstractbooleanTrue for abstract components (marked @abstract): they render into a parent’s DOM, not their own shadow root. When interacting in a real browser (tests), target the node returned by getDomRef() rather…
methodsarrayImperative methods accessible via ref
packagestringNPM package name
propsobjectComponent props with types, descriptions, and eventDetail
subTypeDocsstringAdditional documentation for complex prop types (e.g. AnalyticalTable column definition)

No examples provided.

get_documentation ~466

Retrieve UI5 Web Components for React documentation, guides, and knowledge base articles. Documentation is bundled locally for instant offline access. WHEN TO USE: You need guidance on how to use the library — setup, styling, event handling, SSR, slots, i18n. DO NOT USE FOR: Looking up specific component props or methods — use get_component_api instead. For public utilities/hooks from @ui5/webcomponents-react-base — use get_public_utils. WORKFLOW: Call without parameters to see all available sections. Use section parameter for direct access, query for search. LIMITS: When fetchContent is true, full content is returned for at most 3 matching sections to control output size. EXAMPLE INPUT: { "section": "Knowledge Base > Styling", "fetchContent": true } EXAMPLE INPUT: { "query": "i18n", "fetchContent": true } EXAMPLE INPUT: {} (returns catalog of all documentation sections)

NameTypeReqDescription
endLineintegerEnd line number (1-based, inclusive) for reading a portion of the documentation. Requires fetchContent: true. If omitted with startLine, reads to end of file.
fetchContentbooleanWhether to include the full documentation markdown content. Set to true to retrieve full documentation text in addition to metadata. Content is read from bundled local files (no network required). Us…
querystringFree-form search query to find relevant documentation. Searches across section names, descriptions, tags, and content topics. Examples: "styling", "migration", "i18n", "ssr", "slots", "forms". Use th…
sectionstringSpecific documentation section to retrieve by exact name. Use this for direct access when you know which section you need. Examples: "Getting Started", "Migration Guide", "Knowledge Base > Styling",…
startLineintegerStart line number (1-based, inclusive) for reading a portion of the documentation. Requires fetchContent: true. Useful for large documents like the Change Log or Migration Guide.

No output schema declared.

No examples provided.

get_public_utils ~194

Get documentation for public utilities and hooks from @ui5/webcomponents-react-base. Covers Device API, ThemingParameters, useI18nBundle, useViewportRange, and withWebComponent. WHEN TO USE: You need to use device detection, theme-aware CSS variables in JS, internationalization hooks, responsive breakpoints, or wrap your own custom web components. DO NOT USE FOR: Looking up component props — use get_component_api. For general styling guidance — use get_documentation with section "Knowledge Base > Styling". LIMITS: Returns documentation for one utility per call, or an overview of all 5 utilities. EXAMPLE INPUT: { "name": "ThemingParameters" } EXAMPLE INPUT: { "name": "withWebComponent" } EXAMPLE INPUT: {} (returns overview of all utilities)

NameTypeReqDescription
namestringSpecific utility/hook name. Omit to see all available utilities.

No output schema declared.

No examples provided.

list_components ~190

Browse all 212 available UI5 Web Components for React components across 4 packages with descriptions, categories, and import statements. WHEN TO USE: You need to discover which components exist, find the right component for a use case, or verify a component name before calling get_component_api. DO NOT USE FOR: Getting detailed props or methods — use get_component_api after finding the component name here. LIMITS: Returns all matching components at once (up to 212). Filter by category or package to reduce output size. EXAMPLE INPUT: { "category": "Inputs" } EXAMPLE INPUT: { "package": "@ui5/webcomponents-react-charts" } EXAMPLE INPUT: {} (returns all components)

NameTypeReqDescription
categorystringFilter components by category. Omit to show all categories.
packagestringFilter components by npm package name. Omit to show all packages.

No output schema declared.

No examples provided.

Common questions

What is the io.github.UI5/webcomponents-react-mcp-server server?

io.github.UI5/webcomponents-react-mcp-server is listed in the public MCP registry as io.github.UI5/webcomponents-react-mcp-server. MCP server for UI5 Web Components for React - Developer documentation and API assistance. This page covers its npm package (@ui5/webcomponents-react-mcp).

Is the io.github.UI5/webcomponents-react-mcp-server server safe to use?

io.github.UI5/webcomponents-react-mcp-server scores 93 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.github.UI5/webcomponents-react-mcp-server server expose?

io.github.UI5/webcomponents-react-mcp-server exposes 5 tools: create_app, get_component_api, get_documentation, get_public_utils, list_components. Their descriptions and schemas cost roughly 1,853 tokens of context every time the server is loaded.

Is the io.github.UI5/webcomponents-react-mcp-server server still maintained?

io.github.UI5/webcomponents-react-mcp-server is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the io.github.UI5/webcomponents-react-mcp-server server under?

io.github.UI5/webcomponents-react-mcp-server declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.