Factur-X by Orvel checks and produces French and EU e-invoices (EN 16931).

Free, no key:

validate_invoice: check a Factur-X PDF, CII or UBL file against the XSD, the EN 16931 schematron and the French fr-ctc rules. Findings carry the rule id (BR-07, BR-FR-01...), the field to fix and a corrected example.
view_invoice_demo, get_invoice_example, explain_finding, draft_credit_note.

With a Factur-X allowance (10 free operations with a verified account, then EUR 10 for 100, no subscription):

generate_invoice: invoice JSON in, Factur-X PDF/A-3, CII or UBL out. Totals and VAT computed.
embed_xml: your PDF plus CII XML becomes a Factur-X PDF/A-3.
extract_invoice: parties, totals, VAT and lines as JSON.
check_party / check_invoice_parties: EU Verify readiness of seller and buyer (Pro plans).

Example prompts:

OAuth clients can connect https://facturx.orvel.dev/mcp/account. Setup: https://facturx.orvel.dev/docs/mcp/. Documents are processed in memory and never stored. Generated invoices are independently verified with Mustang (veraPDF, CEN schematron): https://facturx.orvel.dev/docs/conformity/

Factur-X by Orvel checks and produces French and EU e-invoices (EN 16931).

Free, no key:

validate_invoice: check a Factur-X PDF, CII or UBL file against the XSD, the EN 16931 schematron and the French fr-ctc rules. Findings carry the rule id (BR-07, BR-FR-01...), the field to fix and a corrected example.
view_invoice_demo, get_invoice_example, explain_finding, draft_credit_note.

With a Factur-X allowance (10 free operations with a verified account, then EUR 10 for 100, no subscription):

generate_invoice: invoice JSON in, Factur-X PDF/A-3, CII or UBL out. Totals and VAT computed.
embed_xml: your PDF plus CII XML becomes a Factur-X PDF/A-3.
extract_invoice: parties, totals, VAT and lines as JSON.
check_party / check_invoice_parties: EU Verify readiness of seller and buyer (Pro plans).

Example prompts:

facturx

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