Terms of service

Last update: 2 September 2026.

These terms apply to the paid and free Factur-X API / MCP service operated by Antoine LE BORGNE, entrepreneur individuel, trading as Orvel, 10 rue Casabianca, 56600 Lanester, France (le.borgne.antoine.pro@gmail.com).

The service is sold to professionals (B2B). By subscribing you declare that you act for purposes of your trade.

Service

We provide programmatic generation, validation, embedding and extraction of Factur-X / EN 16931 documents over REST (/v1) and MCP (/mcp), as described in the documentation. The engine does not store your files.

Plans, quotas and prices: Pricing. Amounts are EUR, VAT not applicable (art. 293 B of the French CGI, franchise in base) unless we notify you that the franchise has ended.

Account and key

Checkout is handled by Stripe. After payment (including the EUR 0 Free plan) you receive a license / API key. That key is personal to the subscription. Sharing it across unrelated companies is abuse and may lead to immediate termination, with a pro-rata refund of the unused period.

Only successful calls count toward the quota. Over quota, the API returns HTTP 402 until you upgrade or the month resets (UTC).

Customer obligations

You remain responsible for the content you submit and for using the output in line with tax and e-invoicing law. A generate call that returns a file has passed the rule set you requested; we do not warrant fitness for a particular PA, ERP or recipient.

Do not use the service to break the law, to load-test without notice, or to resell raw access without a vendor agreement.

Availability

The service runs on a single EU region (Railway, Amsterdam). No uptime SLA in v0.1. Scheduled or emergency maintenance can occur without prior notice. Credits are not issued for downtime under one business day.

Cancellation and refunds

Cancel, change plan or download invoices from the Stripe customer portal. Access continues until the end of the period already paid. Because the service is digital and supplied immediately, there is no 14-day withdrawal (consumer withdrawal does not apply to professional customers; art. L221-3 and L221-28 of the French consumer code).

Liability

Liability is limited to the amount paid for the last 12 months, except for death, bodily injury, or fraud. We are not liable for loss of data you did not store with us, or for a recipient rejecting a document.

Law

French law. Courts of Lorient / Rennes, unless a mandatory venue applies.