We are building a production-ready AI automation system using n8n, Claude API (Anthropic), and QuickBooks Online. The system automates bookkeeping workflows end to end - from document intake through to financial report delivery. Core requirements: - Watch a Google Drive folder for uploaded PDF/CSV bank statements and process them automatically - Use Claude API to extract and categorise transactions - Write structured entries into QuickBooks Online via write-access API (draft only - not live posting) - Manage A/R and A/P records - flag duplicates, handle approvals - Pull financial data from QuickBooks on a schedule and generate reports delivered via email Tech stack: - n8n Cloud - sub-workflows, error handling, webhook triggers, environment variables - Claude API - prompt engineering for document extraction and categorisation - QuickBooks Online - OAuth2, create/read/update for invoices, bills, journal entries, reports - Google Workspace - Drive, Sheets, Gmail Deliverables: - Fully documented n8n workflow export (.json) - Setup notes - API keys, webhook URLs, scopes - Loom or written walkthrough of one live document processed end to end To apply - describe your experience with QuickBooks Online write-access API specifically and explain how you would call Claude API from inside an n8n workflow. Full brief shared with shortlisted candidates only. Strong delivery leads to ongoing builds and a monthly retainer from Month 2.