Integrations
Integrations
Push invoices to QuickBooks Online or Xero, build on the public API, and let Claude or another AI assistant track time for you.
Applies to:
Everyone
Business & Projects → Integrations is open to every member: the API and MCP guides apply to anyone, and each accounting provider gates itself by permission.
QuickBooks Online
Invoices, customers and payments flow into your QuickBooks company.
Xero
Invoices, contacts and payments in your Xero organisation.
Public API
Read and write your workspace over REST with an API key.
Log time from Claude
The Quanta MCP server for Claude Desktop, Claude Code, Cursor and other MCP clients.
Groups on the page

- Accounting: QuickBooks Online and Xero. Quanta syncs with one accounting system at a time; disconnect one before connecting the other.
- Developer: the Quanta API and the MCP server. Both need an API key, which is on the paid plans.
- Calendars (Google Calendar, Outlook Calendar) and Payments (Stripe) are listed as coming soon. Missing something? at the bottom of the page asks which tool you would like next.
The desktop app is covered under Tracking Time.