Sebastian Grebe
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Projects

What I'm
Building

From AI developer tools to autonomous agent frameworks to quiet luxury fintech — 4 active projects across AI and finance.

Tandemu

An AI that remembers you

AI developer productivity platform with persistent memory. Tandemu learns your coding style, adapts to your personality, and keeps you engaged — while giving engineering leads DORA metrics, AI code attribution, and friction detection.

  • Persistent memory across sessions
  • DORA metrics & AI code attribution
  • Adapts to each developer's style
AIDeveloper ToolsAnalytics
Visit Tandemu
tandemu.dev
Tandemu — HomepageTandemu — PricingTandemu — Features

Substaff

Hire AI employees that do real work

An AI agent framework that lets you build autonomous teams working toward business goals. Give your AI team a goal — launch a blog, research a market, ship a feature. They plan the work, execute it, and deliver results. You set the budget and stay in control.

  • Autonomous goal-based agents
  • Budget controls & supervision
  • Content, development & research
AI AgentsAutonomous TeamsSaaS
Visit Substaff
substaff.app
Substaff — HomepageSubstaff — How it works

Kreye

Your thoughts, unleashed

The workspace that thinks with you. Turn scattered thoughts into structured insights, automatically. Combines multimodal input — text, voice, images — with intelligent analysis to create connections, surface patterns, and build dynamic knowledge workflows.

  • Multimodal input (text, voice, images)
  • Auto-structured insights
  • Dynamic knowledge workflows
AIProductivityKnowledge Management
Visit Kreye
kreye.ai
Kreye — HomepageKreye — Features

Coming soon

In the workshop

Projects in active development. Follow me on Twitter for updates.

📈In Development

Autoportfolio

AI-Native Financial Trading

An AI-native trading platform and MCP integration suite. Real-time market data meets LLM-powered analysis for trade signals, portfolio allocation, and strategy execution across multiple asset classes.

FinanceAI TradingMCP Integration