AI Invoice Data Extractor

1. In Gmail, create a filter or label (e.g., "Invoices") for incoming invoice emails so your automation can target them. 2. In your automation platform, add a Gmail trigger node that watches for new emails with the "Invoices" label. 3. Add a Set/Function node to extract the email body (plain text or HTML) and any attachment names. 4. Add an HTTP Request node to call the Claude API (POST https://api.anthropic.com/v1/messages). Set headers: x-api-key: {{YOUR_ANTHROPIC_API_KEY}}, anthropic-version: 2023-06-01, Content-Type: application/json. Use model claude-sonnet-4-20250514. 5. In the request body, send the email content and instruct Claude to return JSON with fields: vendor, invoiceNumber, date, totalAmount, currency, and lineItems (array of {description, quantity, unitPrice, total}). 6. Parse Claude's response and connect a Google Sheets node to append a row to your "Invoice Tracker" spreadsheet with columns: Date Received, Vendor, Invoice #, Amount, Currency, Line Items (JSON string), Status. 7. Add a Slack node to post a notification to #finance with the extracted vendor, amount, and invoice number. 8. Test by forwarding a real or sample invoice email and verifying the extracted data appears in your sheet.