I built 270 AI agents in an Obsidian vault – zero API costs, all open source

A developer built 270 AI agent profiles across 17 divisions using only open-source tools, with zero API costs. The agents are interconnected through an Obsidian vault containing 317 notes and 500+ wikilinks, and the project includes 11 multi-agent playbooks for tasks like launching a SaaS product and security audits. The tech stack includes Ollama, Playwright, Docker, and ChatbotX, and the vault template is available on Gumroad.

270 AI Agents, One Obsidian Vault, Zero API Costs I just built a complete AI agency infrastructure using only open-source tools, with zero monthly costs. What I Built 270 AI agent profiles across 17 divisions — engineering 58 , specialized 57 , marketing 36 , game development 21 , GIS 13 , security 12 , design 10 , sales 9 , testing 9 , paid media 7 , project management 7 , academic 6 , spatial computing 6 , support 6 , finance 5 , product 5 , healthcare 3 . Each agent has full personality, workflows, deliverables, and success metrics. All interconnected through an Obsidian second brain — 317 notes with 500+ wikilinks. 11 Multi-Agent Playbooks 1. Launch a SaaS Product 14 agents 2. Build an AI Feature 8 agents 3. Security Audit and Harden 7 agents 4. Content Marketing Engine 11 agents 5. Growth Campaign Sprint 8 agents 6. SEO Domination 7 agents 7. Brand Identity Sprint 7 agents 8. Company Formation 8 agents 9. Hire a Team 6 agents 10. Quarterly Review 7 agents 11. Game Prototype 7 agents Tech Stack All Free - Ollama with cloud-backed models - Playwright for browser automation - Docker PostgreSQL + Redis - ChatbotX — open-source ManyChat alternative - Text-to-CAD — 11 skills for manufacturing - Obsidian for the knowledge vault Get It The vault template 317 notes, 270 agents, 11 playbooks is available on Gumroad: https://gumroad.com/products/gfaylx Install in 60 seconds. No API keys. No subscriptions. You own everything. Built with AI, for AI. The infrastructure is ready. The agents are deployed. The machine is running.