Verifactu Mcp

Bridges Claude to Spain's VeriFactu electronic invoicing system via the verifactuapi.es API. Exposes seven tools covering the full lifecycle: generate_invoice_xml creates chained XML with SHA-256 hashes, send_invoice posts to AEAT and persists canonical hashes in local SQLite, cancel_invoice handles annulments, and check_invoice_status queries registration state. The server manages hash chaining through the API's previous_id mechanism while keeping a local audit log. Configuration requires a VERIFACTU_API_TOKEN and supports both sandbox and production AEAT endpoints. Lets you issue, track, and cancel Spanish tax-compliant invoices from natural language prompts without touching AEAT's technical docs directly.