openapi-invoicinglisted

# Openapi invoicing & payments Bearer token required (see the `openapi-auth` skill). Sending invoices/receipts to the Revenue Agency and paying bills are **irreversible fiscal/financial actions — always confirm with the user first**. ## Invoice (preferred) — `https://invoice.openapi.com` Full management of Italian electronic invoices (FatturaPA XML) and digital receipts. - `POST /IT-invoices` — create/send an invoice to the SDI; `GET /IT-invoices`, `GET /IT-invoices/{id}` — list and monitor states (delivery, rejection) - `POST /IT-invoices_import` — import externally created invoices - `POST|GET|PATCH|DELETE /IT-configurations[/{fiscal_id}]` — per-company configuration (signature, legal storage, `receipts_authentication`) - `POST /IT-receipts` — send a digital receipt; `GET|PATCH|DELETE /IT-receipts/{id}` (PATCH returns items from a receipt) Key constraints: - **Receiving supplier invoices** requires registering Openapi's Recipient Code on the Revenue Agency website: code **PIC7CPS** (Invoice API). - Receipts cannot be sent 23:55–00:00 Italian time (queued to the next day); the receipt service requires enabling third-party credentials on the Agenzia delle Entrate portal (guide: https://docs.openapi.it/Procedura-manuale-per-incarico.pdf). Freelancers/sole proprietorships cannot delegate and must use their own credentials. ## SDI (lower-level) — `https://sdi.openapi.it` 1. `POST /business_registry_configurations` (fiscal_id + email; legal-storage registration email foll