VozClara

Multilingual AI study tool. Paste any public video URL → get a structured Knowledge Pack (summary, key ideas, glossary, quiz, transcript with timestamps) in your native language: Spanish, Portuguese, German, English.

Live: vozclara.app MCP Server: smithery.ai/server/salvador7eon/vozclara

Klassisch in der Haltung, modern im Werkzeug.

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MCP integration

VozClara exposes a Model Context Protocol (MCP) server so AI agents (Claude Desktop, Cursor, Claude Code, Continue, VS Code with Copilot Chat, etc.) can call it directly.

One-click install via Smithery → choose your client → done.

Manual config for Claude Desktop (%APPDATA%\Claude\claude_desktop_config.json on Windows, ~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

{
  "mcpServers": {
    "vozclara": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://vozclara.app/api/mcp"]
    }
  }
}

Restart Claude Desktop and ask:

"Use vozclara to summarise this video in German: https://www.youtube.com/watch?v=…"

Available tools

The anonymous endpoint (/api/mcp) exposes one tool that works without sign-in. The OAuth-protected endpoint (/api/mcp/pro) adds three tools that operate on the user's own VozClara library.

Tool	Endpoint	Inputs	Output
vozclara_generate_pack	/api/mcp (anonymous)	url, language (es/pt/de/en), depth (short/standard/deep)	Knowledge Pack text + structured metadata + deep-link to the interactive pack on vozclara.app
vozclara_search_my_library	/api/mcp/pro (OAuth)	query, optional limit (1-10)	Semantic-search hits across the authenticated user's packs, each linked to vozclara.app
vozclara_ask_video	/api/mcp/pro (OAuth)	pack_id, question	RAG-grounded answer with inline citations, strictly from that one pack
vozclara_export_anki	/api/mcp/pro (OAuth)	pack_id	Deep-link URL the user opens to download the .apkg deck

Authenticated config (Claude Desktop, paid-tier tools — adds the three library-scoped tools above):

{
  "mcpServers": {
    "vozclara-pro": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://vozclara.app/api/mcp/pro"]
    }
  }
}

On first call mcp-remote opens the browser, you sign in with the magic-link, approve the scopes (library:read, library:write, profile), and the refresh-token is cached locally — same flow as GitHub's MCP server.

Claude Skills bundle

A higher-level companion to the raw MCP tools above. skills/ in this repo holds three installable Claude Skills that route everyday video / knowledge / study asks through the VozClara MCP server — so Claude knows when to reach for vozclara_generate_pack vs vozclara_search_my_library vs vozclara_ask_video without the user having to remember tool names.

mkdir -p ~/.claude/skills
cp -R skills/vozclara-* ~/.claude/skills/

Restart Claude Desktop (or /reload-skills in Claude Code). The skills appear in the picker. See skills/README.md for the trigger shapes per skill + the OAuth flow for the two paid-tier ones.

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Stack

Layer	Technology
Frontend	Vite + React 18 + TypeScript + Tailwind on Cloudflare Pages
Worker	Cloudflare Workers + Durable Objects + KV + D1 + Vectorize
LLM (free / Pro)	Workers AI · @cf/meta/llama-3.3-70b-instruct-fp8-fast
LLM (Pro Plus)	Anthropic Claude Sonnet 4.5 via Cloudflare AI Gateway
Transcripts	Supadata (Merchant-of-Record, licensed)
Embeddings	@cf/baai/bge-base-en-v1.5 for semantic search
TTS	OpenAI tts-1 (optional, premium narration)
Auth	Magic-link via Resend, no passwords
Payments	Paddle (Merchant-of-Record, EU VAT + US sales tax handled)
MCP	agents SDK + McpAgent + (Phase 2) workers-oauth-provider
Analytics	Cloudflare Web Analytics (cookieless, no consent banner)

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Local development

Prerequisites: Node 20+, Git.

# Install
npm install
npm --prefix worker install

# Two terminals — Vite dev server + Wrangler dev
# Terminal A: Vite on :5173
npm run dev
# Terminal B: Wrangler on :8787
npm run worker:dev

Vite proxies /api/* to :8787, so http://localhost:5173 works end-to-end.

For the worker to call Supadata locally, drop a .dev.vars file inside worker/:

SUPADATA_API_KEY=sd_…
# Optional — enables OpenAI TTS path
OPENAI_API_KEY=sk-…
# Optional — enables Sonnet 4.5 for Pro Plus tier
ANTHROPIC_API_KEY=sk-ant-…

The file is git-ignored. Production secrets go through wrangler secret put <NAME> instead.

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Deployment

Frontend → Cloudflare Pages

npm run build
# Push to GitHub; Cloudflare Pages builds dist/ automatically.
# Custom domain: vozclara.app

Worker → Cloudflare Workers

cd worker
npx wrangler deploy

This deploys the API + MCP server to vozclara.app/api/* and the matching Smithery URL at https://vozclara--salvador7eon.run.tools.

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Compliance

• DSGVO Art. 13 — full subprocessor list at /privacy
• DSGVO Art. 17 — server-side account deletion sweeps email + sessions + votes + reviews
• EU AI Act Art. 50(1) — AI disclosure banner shown on first generator visit
• EU AI Act Art. 50(2) — every exported pack carries an AI-generated watermark
• Refund policy — 14-day money-back guarantee at /refund

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Brand

LEON MARÉ Editorial:

• Colors — Navy #0A1A3A, Gold #C9A24B, Creme #F7F3EC, Graphit #1A1A1A
• Typography — Per-locale: Reforma (ES), Adelle Sans (PT), Inter (DE), Tiempos (EN)
• Tonalität — classical, declarative, no exclamation marks, no emoji, no superlatives

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VozClara · A LEON MARÉ product · Frankfurt am Main · Donostia · Porto