Numbers Game

What is Numbers Game?

Numbers Game is a hosted MCP (Model Context Protocol) server built for accounting firms. It connects the firm's own Claude or ChatGPT subscription to client books in QuickBooks Online and Xero, so staff can pull reports, reconcile, run month-end close checklists and propose entries from the AI chat, with every write held for a person to approve.

Who it's for

Accounting and bookkeeping firms and fractional CFOs that manage many QuickBooks Online or Xero client companies. Numbers Game says it started inside AG Accounting, a San Francisco firm serving 250+ venture-backed startups, and was made available to other firms in 2026. The company is Numbers Game B.V., based in Amsterdam.

Key features

• Read and write invoices, bills, purchases, deposits, journal entries, vendors and customers in QuickBooks Online and Xero
• Reports: P&L, Balance Sheet, Trial Balance, General Ledger, AR and AP Aging and P&L by Class
• Bank reconciliation with branded reconciliation reports
• Month-end close checklists, proposed adjusting entries and a Close Report PDF
• Bulk class and department classification with preview, approve and execute steps
• Branded Board, Issues and Reconciliation Reports and supporting memos that can be attached in QuickBooks Online
• Every write is proposed for human approval; roles (Owner, Admin, Member, Viewer), per-company scoping, an activity log of every MCP call and revocable OAuth
• Cannot permanently delete QuickBooks Online records, change Intuit settings, initiate payments or ACH, or touch payroll filings (per the vendor)

Integrations

• QuickBooks Online
• Xero
• Claude
• ChatGPT
• Stripe
• Slack

Numbers Game is listed in Anthropic's Claude connector directory. Plans are counted in connection credits: each QuickBooks Online or Xero company uses 1 credit, and each Stripe, Square, Ramp, bank or card issuer connection uses 0.5 credit. Slack delivers weekly and month-end report drops.

Pricing

Starter $149/month (3 connection credits), Growth $299/month (7), Scale $799/month (30), Enterprise by quote; unlimited team seats; 14-day free trial (from the vendor's public pages, last checked October 23, 2026; confirm with the vendor)

Sources

1. https://www.numbersgame.xyz/
2. https://www.numbersgame.xyz/quickbooks-xero-mcp.html
3. https://www.numbersgame.xyz/features.html
4. https://www.numbersgame.xyz/firms.html
5. https://www.numbersgame.xyz/security.html
6. https://www.numbersgame.xyz/about.html
7. https://www.numbersgame.xyz/whats-new.html
8. https://claude.com/marketplace/connectors/numbersgame-mcp

Last checked: 2026-10-23