# cronus-ui-mcp

Model Context Protocol server for Cronus UI — lets MCP-compatible AI agents discover and fetch Cronus UI components and blocks from the registry.

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the package rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 0.7.6
- **Author:** Cronus
- **License:** MIT
- **npm:** cronus-ui-mcp
- **Endpoints:** streamable-http https://aicronus.com/mcp
- **Source:** https://github.com/pedrogbraz/cronus-ui
- **Endpoint health:** reachable (last checked 2026-09-12T09:16:30.210Z, 1 sample) — uptime is not a security property and is not part of the trust score
- **Compatible clients:** claude-code, cursor, copilot, chatgpt, gemini (basis: transport)

## Trust

60/100 (B), scored on the package rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-12T09:16:13.095Z
- **Version scanned:** 0.7.6
- **CVEs:** none found by OSV at scan time

## Tools

14 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `list_components` — List the installable Cronus UI components (registry items of type 'registry:ui').
- `list_blocks` — List the installable Cronus UI blocks (registry items of type 'registry:block') —
- `list_catalog` — Return compact Hydra-ready cards for every component, block, variant, and template:
- `match_catalog` — Two-query catalog match for low-context agents. Pass a free-text `query`
- `search_registry` — Fuzzy-search Cronus UI components and blocks by name (case-insensitive substring match).
- `get_design_context` — Return the Cronus UI visual taste file (DESIGN.md) for a theme × look.
- `get_component` — Fetch the full detail for a single Cronus UI component or block by name: its source
- `get_install_command` — Build the `npx cronus-ui add ...` command for one or more components/blocks. The CLI
- `install_component` — MODIFIES THE FILESYSTEM. Install one or more Cronus UI components/blocks into the
- `upgrade_components` — MODIFIES THE FILESYSTEM. Upgrade installed Cronus UI components and composed pages/layouts
- `apply_theme` — MODIFIES THE FILESYSTEM. Apply a theme built in the Cronus UI Create Studio to the
- `compose_app` — MODIFIES THE FILESYSTEM. Generate a full multi-page app from a validated Cronus UI
- `add_page` — MODIFIES THE FILESYSTEM. Grow an already-composed app by one page: install the
- `set_theme` — MODIFIES THE FILESYSTEM. Switch the baked-in Cronus UI theme preset (and optionally

## Install

**Verdict: review** — Installable, but 1 thing to check first: No publisher has proved control of this listing; it is indexed, not vouched for.
**Cautions** (coverage gaps and advisories — never blocking)
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"cronus-ui\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"cronus-ui-mcp\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Extensive to critical — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs commands; runs locally and hosted.
- Floor 49, ceiling 77 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/cronus-ui-mcp
- Install plan: https://forgeregistry.com/api/v1/packages/cronus-ui-mcp/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/cronus-ui-mcp
- HTML page: https://forgeregistry.com/registry/cronus-ui-mcp
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.