Watermelon UI MCP server

Watermelon Platform

The open-source platform behind ui.watermelon.sh.

Free for the community. Supported by people and teams who want Watermelon to keep getting better.

This repo powers the browsing experience for Watermelon components, animated UI, blocks, dashboards, and templates. It is where discovery, previews, docs, SEO pages, and contributor-facing content all come together.

What This Repo Does

• renders the public Watermelon UI experience
• loads content from MDX and colocated source files
• previews components, blocks, dashboards, and templates
• generates the sitemap and other search-friendly surfaces
• gives contributors a structured way to publish new content
• includes developer-facing AI and MCP discovery files

Stack

• React 19
• TypeScript
• Vite
• Tailwind CSS 4
• Motion
• React Router
• Bun for the preferred local workflow

Quick Start

git clone https://github.com/WatermelonCorp/watermelon-platform.git
cd watermelon-platform
bun install
bun run dev

Useful commands:

• bun run dev: start the local app
• bun run build: generate the sitemap, typecheck, and build production assets
• bun run lint: run ESLint
• bun run preview: preview the production build locally
• bun run deploy: build and deploy
• bun run mcp: start the local Watermelon MCP server over stdio
• bun run mcp:dev: run the hosted MCP Worker locally
• bun run mcp:deploy: deploy the hosted MCP Worker to Cloudflare
• bun run generate:shadcn-registry: generate installable shadcn registry JSON

Public machine-readable endpoints:

• /llms.txt
• /openapi.json
• /api/docs
• /api/catalog/summary
• /api/catalog/entries?kind=blocks

Content Model

Most public content is file-based and lives in src/data/contents.

• animated-components/: animated component source folders
• registry/: MDX metadata for animated component entries
• components/: UI component category configs
• blocks/: block content and previews
• dashboards/: dashboard entries and demos
• templates/: template entries and demos

Routes are wired in src/components/layout/app-routes.tsx, and the sitemap is generated from the same content model in scripts/generate-sitemap.ts.

Installable Components

Watermelon components are distributed as copy-paste shadcn registry items, so the resulting code lives in the consuming project and remains fully editable.

npx shadcn@latest add https://registry.watermelon.sh/r/card-split-accordian.json

The registry is generated from the maintained animated component source during every platform build and includes the complete base-component collection.

Connect the hosted MCP server (no API key) to your AI client:

claude mcp add --transport http watermelon https://mcp.watermelon.sh/mcp
codex mcp add watermelon --url https://mcp.watermelon.sh/mcp

Contributing

The easiest way to contribute is to improve one thing at a time:

1. Read CONTRIBUTING.md.
2. Pick the content type you want to add or improve.
3. Follow the matching folder pattern in src/data/contents.
4. Run bun run lint and bun run build.
5. Open a PR with screenshots for anything visual.

Docs, polish, accessibility fixes, demo improvements, and contributor experience changes are all valuable contributions here.

AI And Developer Surfaces

Watermelon includes a few machine-readable surfaces to help agents and tooling understand the project faster:

• public/llms.txt
• public/openapi.json
• public/sitemap.xml
• mcp/server.ts
• mcp/worker.ts
• wrangler.mcp.toml
• worker/site.ts
• skills/watermelon-ui/SKILL.md
• .codex-plugin/plugin.json
• .claude-plugin/plugin.json
• .cursor-plugin/plugin.json

The hosted MCP endpoint lives at https://mcp.watermelon.sh/mcp and exposes 800+ source-backed examples through search, retrieval, inspiration, category, and page-composition tools.

Shortened. The full README is on GitHub.