Best Billing and Invoicing Software for Claude Code

LuckPanda is a browser-based business app for small businesses and freelancers. Sales creates quotes, invoices, pro forma invoices, receipts, credit notes, sales orders, recurring invoices, payment links and reminders in multiple currencies, with country-specific tax formats. CRM manages clients, contacts, leads and pipelines. Finance supports payments, accounting, banking and reports. Compliance covers GST, e-invoicing, e-way bills and verification. Purchasing and Inventory are in development; planned tools include vendor and purchase-order workflows, bills, item and warehouse records, and stock movements. Drafting, editing and branded PDF downloads are free; paid modules are required to issue or send documents, collect payments, or download clean PDFs. The REST API and MCP server support authorized searches and drafts; people approve external actions. Free tools include invoice, quote and receipt generators, GST, VAT and sales-tax calculators, and GSTIN and IBAN checkers.