Every time Vince and I opened Claude to help with our business, we filled in pertinent data about the business. Who this customer is. What we charged them. What we said last time. The AI was capable. It just had no context, so we provided the context, every time.
Vince and I built Founders OS to help us run our business with AI. It is an open-source MCP server that hands your AI client the actual state of your company: CRM, tasks, projects, a double-entry financial ledger, and a semantic memory that persists across sessions. It runs locally over stdio and stores everything in your own database. No middleman, no SaaS account, and most importantly no data leaving your control.
The part that changed how we work is cross-domain reasoning. We ask one question and the model reads across modules to answer it. "Which customers we closed this quarter still have an unpaid invoice, and what did I promise them last time we talked?" That is the CRM, the ledger, and memory in a single answer. Before, that was three lookups and a spreadsheet. Now it is one sentence.
Because it is self-hosted, the data ownership story is simple: it is your own database. You run the migrations for the tool groups you want, point your client at it, and that is the whole deal. Each teammate runs their own instance against the shared database, and that shared DB is what defines your org boundary. Personal memory stays personal, org memory is shared.
It is MIT licensed and live. If you have ten minutes:
Repo: https://github.com/OurThinkTank/founders-os
npm: @ourthinktank/founders-os
Site and setup: https://foundersmcp.com
If you try it and something is rough, open an issue. We are building this in the open and dogfooding it on our own company every day.
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