Founders OS dropped on GitHub this week as an open-source MCP server that wires your entire business operations directly into AI assistants like Claude, Cursor, and any other MCP-compatible client. Built by OurThinkTank, the project delivers 92 tools across 12 modules—including CRM, task management, double-entry bookkeeping, RSS feeds, semantic memory with pgvector, and reusable playbooks—all running through a single Supabase backend you control.

What You're Actually Getting

The stack is surprisingly complete for a self-hosted tool. The CRM handles customers and contacts as separate records (so you can move people between companies without losing history), the financial module implements proper double-entry ledger with per-user access controls, and the memory system uses OpenAI's text-embedding-3-small model by default—with options for AWS Bedrock or local Ollama if you want to keep embeddings in-house. There's even a built-in feed reader for RSS/Atom/JSON that can brief you on industry news alongside your operational data. The playbooks feature is where this gets interesting for power users. Define an orchestration template once—say, a customer onboarding sequence—and run it against any customer to spin up tasks AND fire external actions through other MCP tools like creating GitHub repos or posting to Slack. If a connector isn't available, the step gracefully falls back to a tagged manual task, so your workflows never break mid-execution.

The Setup Experience

Configuration happens entirely in-browser at foundersmcp.com/setup—the wizard generates your mcp.json config without ever sending credentials off your machine. You point your AI client at the generated file, set your Supabase project URL and secret key as environment variables, and you're rolling. The first-run experience detects an empty database and attaches onboarding hints to tool responses rather than dumping all 92 tools on you at once—a thoughtful touch that keeps initial interactions conversational instead of overwhelming.

Rendering and Client Compatibility

Founders OS includes a four-tier rendering contract so AI clients can display data in the most visual format they support: artifact/widget primitives first, then inline HTML/SVG/JSX, markdown tables, or plain prose as a fallback. The contract ships through MCP server instructions at connection time, via get_session_start responses, and per-response reminders—three channels that cover cold starts and long sessions alike.

Key Takeaways

  • 92 tools across CRM, tasks, projects, playbooks, finances, feeds, memory, and diagnostics
  • Self-hosted on your own Supabase instance—no vendor lock-in for your business data
  • Semantic memory with pgvector supports OpenAI, AWS Bedrock, or local Ollama embeddings
  • Playbooks can orchestrate both native Founders OS tasks and external MCP tool calls
  • MIT licensed; outside contributions not yet accepted but issue reports encouraged

The Bottom Line

This is exactly the kind of project that makes self-hosting worth the hassle—you're feeding your AI client real business context instead of whatever it hallucinated from training data. For founders who want AI assistants actually integrated into their operations rather than just answering questions, Founders OS fills a gap that's been wide open since the MCP spec landed.