Closed beta · invite only

A personal OS for founders

One place for your projects, strategy, ideas, decisions, credentials, and AI context. Brain MCP plugs your Claude Desktop / Cursor straight into structured knowledge of every venture you're building.

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BYOK AI keys · No credit card to start · 14-day trial on paid plans

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Project Brain

Each venture has a structured knowledge graph — strategy, ICP, business model, tech stack, decisions — all versioned with rollback.

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AI fills with your keys

BYOK Anthropic / OpenAI. Brain Fill writes every section for you, drafts content, generates landing copy. Your AI bill, not ours.

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MCP for Claude + Cursor

Your AI tools read and write Brain directly. One workspace API key, full project context wherever you code or think.

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Capture inbox

Ideas, decisions, tasks — quick capture from any project. AI helps you tag, link, and surface them when context matters.

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Vault for credentials

API keys, accounts, subscriptions — encrypted via Supabase Vault. Per-project organisation, never exposed in client bundles.

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Workspace + team

Invite cofounders, advisors, contractors with role-based access. Per-workspace billing, AI keys, audit log.

Brain MCP

Your AI tools work on your project

One key per workspace plugs Claude Desktop, Cursor, and Codex into the same structured Brain. They read your strategy, ICP, tech stack, and decisions — and write back updates as you iterate.

{
  "mcpServers": {
    "founder-os": {
      "url": "https://mcp.elaurion.com/<project-id>",
      "headers": { "Authorization": "Bearer fos_…" }
    }
  }
}

Built for founders running 1–10 ventures

Currently in closed beta. We onboard new founders in small batches to make sure each gets a clean setup.

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Founder OS