OurThinkTank/founders-os

**Open-source MCP server for startup and small business founders.**
Founders OS gives you a complete business context - CRM, projects, tasks, finances, feeds, memory, playbooks - accessible from Claude, Cursor, or any MCP-compatible AI client. One connection, your entire business.
Built by OurThinkTank. Marketing site at foundersmcp.com.
New to AI tools, or handing this to someone who is? Start with Read This First - a plain-language intro to what FoundersOS is and isn't, what AI assistants can and can't do, and the habits that keep them honest.
What's Included
| Module | Tools | Description |
|---|---|---|
| **CRM** | 13 | Customers, contacts, interactions, pipeline dashboard |
| **Tasks** | 12 | Tasks with entity linking, AI assignment, dependencies, progress notes |
| **Projects** | 5 | First-class project records anchored on a project tag, with task rollups |
| **Playbooks** | 11 | Reusable orchestration templates that fan out to tasks and external MCP actions |
| **Tags** | 4 | Shared tag registry with soft validation and auto-registration |
| **Financial** | 14 | Double-entry ledger, P&L, multi-company, per-user access control |
| **Feeds** | 13 | RSS/Atom/JSON reader, briefings, bookmarks, pins |
| **Memory** | 5 | Semantic memory with personal + org scopes, pgvector, dedup, metadata filters |
| **Surfaces** | 6 | Cross-domain reads: session start, entity cards, weekly retro, stuck list, session checkpoints, project history |
| **Members** | 4 | Org membership directory, owner designation |
| **Audit + Restore** | 2 | Full audit log; soft-delete recovery |
| **Diagnostic** | 5 | Ping, version, usage guide, capability explorer, demos |
94 tools total across 12 modules.
Quick Start
You need a Supabase project, an embedding API key (OpenAI by default), and an MCP-capable AI client.
1. Set up Supabase
Create a Supabase project, then in the SQL Editor run supabase/setup.sql. This single file sets up the full schema from scratch — extensions (vector, uuid-ossp, pg_trgm), all tables, indexes, RLS policies, functions, views, maintenance jobs, and the Data API grants required for compatibility with Supabase's removal of automatic default privileges for projects created on or after 2026-05-30. The wizard at foundersmcp.com/setup prints the same SQL with the embedding dimension already matched to your provider — prefer it if you are not using the default dimension.
2. Connect your AI client
The Founders OS MCP server runs through npx. Every client - Claude Desktop, Cowork, Cursor, Continue.dev, Zed, or any spec-compliant MCP client - uses the same configuration.
The quickest way is the wizard at foundersmcp.com/setup: enter your Supabase and embedding credentials and it generates a filled-in config for you to copy or download. Your credentials never leave the browser. You can also paste the block below by hand.
Drop this into your client's mcp.json (in Claude Desktop, this is the MCP servers section of your config):
See Environment variables for the full list and provider options.
3. Try it
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CRM (13 tools)
Pipeline management for customer organizations and the contacts inside them. Customers are organizations; contacts are people - always separate records, so you can move a contact between customers without losing history.
**Customers:** add_customer, get_customer, update_customer, remove_customer, search_customers, list_customers
**Contacts:** add_contact, update_contact, remove_contact, search_contacts
**Interactions:** log_interaction, list_interactions
**Dashboard:** get_dashboard
**Pipeline phases:** prospect -> lead -> opportunity -> customer -> renewal (plus churned, inactive).
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Tasks (12 tools)
Unified task management with org and personal scopes, entity linking, AI assignment, task dependencies, progress notes, and a task-to-memory bridge.
create_task, get_task, update_task, complete_task, remove_task, list_tasks, link_task, unlink_task, list_entity_tasks, add_task_note, assign_task, get_task_summary