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

AnswerRank

Get recommended by the AI engines

The AEO and AI-visibility platform for indie founders. Track how ChatGPT, Claude, Perplexity, and Gemini talk about your brand, then work a deterministic checklist of fixes so they recommend you instead of a competitor.

  • Tracks ChatGPT, Claude, Perplexity & Gemini
  • Deterministic AEO fix checklist
  • Source Influence Map & GSC gap
AEOAI VisibilitySaaS
Visit AnswerRank
answerrank.app
AnswerRank — HomepageAnswerRank — PricingAnswerRank — AEO Guide

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