My AI Productivity Toolkit
Marcel's CTO Stack — Updated May 2026
★ Core Agent — Always On
🦞 OpenClaw
Open-source personal AI agent running locally. Connects all tools, messaging channels, and AI models into one autonomous assistant. The orchestration layer for everything below.
Autonomous Tasks
Cron Jobs
Persistent Memory
MCP Servers
Browser Control
100+ Skills
WhatsApp · Slack · Telegram
Messaging Channels
Claude · GPT · Gemini · Local Models
Model-Agnostic AI Backend
Notion · Obsidian · Google · GitHub
Tool Integrations
Self-hosted · On-device · Privacy-first
Runs on your infrastructure
General AI
ChatGPT
Brainstorming, Drafting, General Q&A
Kosten: ~30 €/Monat (Business Seat)
Gemini
Google-integrated Research & Reasoning
Kosten: in Google Workspace enthalten
Claude
Strategic Thinking, Documents, Analysis
Kosten: 500 €/Monat Team Plan + variable API Credits
Grok
xAI — Research, Real-time Web & Twitter Trends
Kosten: ~26 €/Monat (SuperGrok)
Learning
NotebookLM
PDFs, Links & Videos → Summaries, Q&A, Audio Overviews
Kosten: kostenlos (Google Account)
Meetings
Fireflies.ai
Auto-join, Transcribe, Key Points & Action Items
Kosten: ~67 €/Monat (Business + AI Credits)
Voice
WisprFlow
AI Dictation — 4× schneller als Tippen, überall einsetzbar
Kosten: ~13 €/Monat (Flow Pro)
OpenAI Whisper
Speech-to-Text API — Transcription in agents & automations
Kosten: API Pay-as-you-go (in Anthropic/OpenAI Credits)
ElevenLabs
Text-to-Speech — Lily Voice, natural AI audio output
Kosten: ~4 €/Monat (Starter)
Coding
Claude Code
Agentic Coding from Terminal — Debug, Refactor, Ship
Kosten: in Claude Team Plan / API Credits enthalten
Search
Perplexity
Search with live Citations & Source Links
Kosten: ~174 €/Monat (Perplexity Max)
Brave Search
Privacy-first Web Search — used in agents & automations
Kosten: API Pay-as-you-go
Slides
Beautiful.ai
Polished Decks from short Prompts — auto Layout & Design
Kosten: ~12 €/Monat (Pro Plan, jährlich)
Video & Media
HeyGen
AI Video Generation — Avatar-based Videos from Text
Kosten: ~24 €/Monat (Creator Plan)
Workflow Automation
n8n
Self-hostable Workflow Automation — connect everything
Kosten: self-hosted (nur Server-Kosten)
Web Scraping
Apify
Web Scraping Platform — Twitter/X, LinkedIn, Websites via Actors
Kosten: Pay-as-you-go (Compute Units)
Collaboration & Productivity
Slack
Team Communication & Async Workflows
Kosten: im DocuSketch Firmenplan enthalten
Notion
Command Center, Wikis, Investment Tracking
Kosten: im DocuSketch Firmenplan enthalten
Obsidian
Local-first Knowledge Vault — Markdown Notes, Linking & Graph
Kosten: kostenlos (persönliche Nutzung)
Evernote
Notes, Clippings & Knowledge Capture
Kosten: ~13 €/Monat (Personal Plan)
Security
Domain & Email Breach Monitoring — Alerts bei Daten-Leaks
Kosten: ~4,50 USD/Monat (Dashboard Plan)
Calendar & Email
Google Workspace
Gmail, Calendar, Drive, Docs
Kosten: im DocuSketch Firmenplan enthalten
Microsoft Outlook
Email, Calendar & Scheduling
Kosten: in Microsoft 365 Firmenplan enthalten
Superhuman
AI-powered Email Client — Speed, Focus & Inbox Zero
Kosten: ~30 €/Monat (Starter Plan)
Markets & Finance (Private)
Finnhub
Stock Market Data API — Quotes, Fundamentals & News für Trading App
Kosten: Free Tier / API Pay-as-you-go