fr-legal-kit
x402 API for AI agents. Offline French legal helpers. $0.01 USDC on Base per call. No INSEE, no scrape, no PDP.
Live: https://fr-legal-kit.monnet-yanis1.workers.dev
MCP registry: io.github.CartonPliant/fr-legal-kit
x402scan: https://www.x402scan.com/server/edab7902-3c37-4463-97ef-fa115c225b8d
AgentCash: npx agentcash add https://fr-legal-kit.monnet-yanis1.workers.dev
Routes
| POST | What |
|---|---|
/v1/einvoice-who | Who must receive e-invoices since 1 Sep 2026 vs emit (GE/ETI 2026, PME/micro 2027) |
/v1/late-penalties | L441-10 C. com. interest (BCE MRO +10 pts, H2-2026 default 2.40%) + 40 € (D.441-5) |
/v1/due-date | Invoice date + net days; next open day skipping L.3133-1 holidays 2026–2027 |
/v1/holidays | Metropolitan public holidays (11 in 2026, Easter Monday 6 Apr) |
/v1/payment-term-max | Agreed-term ceiling: 60 days after invoice, or 45 days EOM if stipulated (L441-10 I) |
/v1/tva-rate | Indicative VAT 20 / 10 / 5.5 / 2.1 |
/v1/mention-fields | Checklist of L441-9 / 293 B / L441-10 mention field ids |
/v1/vat-key | FR intra-community VAT id from SIREN (CGI 286 ter formula, not VIES) |
/v1/penalty-text | Collable L441-10 + D.441-5 mention strings (12,40 % + 40 €) |
/v1/franchise-293b | 2026 293 B thresholds (37 500 / 85 000 €) + statutory mention |
/v1/dunning-steps | Relance calendar J+1 / J+8 / J+15 after due date (usage; L441-10 sans rappel) |
/v1/open-days | Inclusive open-day count between two dates (skip weekend + L.3133-1) |
/v1/invoice-numbering | L441-9 chronological sequence: next number + no-gap rules |
/v1/amount-words | French amount in words (12,40 → douze euros et quarante centimes) |
/v1/alsace-holidays | Alsace-Moselle extras (Good Friday + St Stephen) + combined calendar |
/v1/due-date-eom | 45 jours fin de mois (L441-10 I): month-end+45 and +45-then-EOM |
/v1/ht-ttc | HT ↔ TTC at CGI rates 20 / 10 / 5.5 / 2.1 / 0 |
/v1/days-late | Calendar days from due_date to as_of (input for late-penalties) |
/v1/siren-from-siret | SIRET → SIREN + NIC + checksums + VAT key (no INSEE) |
/v1/quote-validity | Devis validity calendar (default 30 days, usage not L441-9) |
/v1/ape-naf | APE/NAF rev.2 format (4 digits + letter, e.g. 62.01Z). No INSEE |
/v1/postcode-fr | 5-digit postcode → department (2A/2B, 97x, Alsace-Moselle flag) |
/v1/legal-form | Extra invoice mentions by form (EI/micro vs SAS/SARL capital+RCS) |
/v1/iban-fr | FR IBAN 27 chars: bank / branch / account / RIB key + ISO checksum |
/v1/credit-note | Avoir: next AV- number + CGI 289 mention of original invoice (L441-9, no reuse) |
/v1/phone-fr | FR phone format (ARCEP): 10 digits / +33 → E.164 + invoice mention. No lookup |
/v1/capital-social | Share-capital mention (SAS au capital de 1 000,00 €). EI/micro: none |
/v1/rcs-mention | RCS + greffe city + SIREN (RCS Pau 404 833 048). Format, not a Kbis |
/v1/invoice-currency | EUR legal tender; foreign ccy OK, VAT in euros. No FX |
/v1/escompte | L441-10 early-payment discount mention, or « Pas d'escompte… » |
/v1/acompte | Down-payment invoice: AC- number, 30% default, remaining TTC (CGI 289) |
/v1/date-fr | Invoice date JJ/MM/AAAA + weekday (L441-9 emission date format) |
/v1/payment-means | Means of payment mention (virement / chèque / CB / …) L441-9 |
/v1/interest-start | L441-10: interest starts the calendar day after the due date |
/v1/siege-social | Siège social mention: street + CP + city (L441-9, not a Kbis) |
/v1/net-a-payer | Invoice footer HT/TVA/TTC + « Net à payer : 1 200,00 € » |
/v1/doc-title | CGI 289 title: Facture / Avoir / acompte / note d'honoraires / Devis |
/v1/autoliquidation | Reverse-charge VAT mention (CGI 283 / BTP 283-2 nonies / import) |
/v1/eori | FR EORI = FR + SIREN (format only, no customs lookup) |
/v1/duplicata | Copy of an invoice: same number, stamped DUPLICATA (not a new invoice) |
/v1/rm-mention | Artisan RM + city + SIREN (RM Pau 404 833 048). Format, not a D1 |
/v1/buyer | L441-9 client identification: name + optional SIRET/SIREN + city |
/v1/unit | Line unit of measure (heure / jour / forfait / …) + optional qty |
/v1/cgv | L441-6 CGV mention (« Nos conditions générales de vente s'appliquent. ») |
/v1/reserve-propriete | Retention-of-title clause (L.624-16) until full payment. Goods only |
/v1/garantie-legale | Consumer legal warranty 2 years from delivery (C. conso L.217-3) |
/v1/mediateur | Consumer mediator mention (C. conso L.612-1). B2C only |
/v1/delivery | Date of supply vs invoice date (CGI 289 / 242 nonies A) |
/v1/line | L441-9 invoice line: designation + qty/unit + unit price HT |
/v1/page | Multi-page invoice footer: Page X/Y |
/v1/retractation | 14-day consumer withdrawal (L.221-18). B2C distance/off-premises |
/v1/conservation | Keep the invoice 10 years (L123-22) / 6 years tax (LPF L102 B) |
/v1/prescription | Payment action: 5 years B2B (L110-4) or 2 years B2C (L.218-2) |
/v1/garantie-commerciale | Commercial warranty (L.217-21), distinct from the 2-year legal one |
/v1/export | VAT exemption: CGI 262 extra-EU or 262 ter I intra-EU |
/v1/proforma | Pro forma header — not an invoice (CGI 289) |
/v1/jours-francs | Jours francs (CPC 642): start day out, weekend/holiday rolls |
/v1/clause-penale | Contractual penalty clause (C. civ. 1231-5), not L441-10 |
/v1/periode | Billing period from/to for continuous services (CGI 289) |
/v1/autofacturation | Self-billing stamp (CGI 289), optional seller name |
/v1/rgpd | Invoice data footer: RGPD 6.1.b/c + 10-year keep |
/v1/langue | French language mention (Toubon B2C / tax-control B2B) |
/v1/commande | Purchase-order number (+ optional date) on the invoice |
/v1/debours | Disbursements out of the VAT base (CGI 267) |
/v1/arrhes | Arrhes (C. civ. 1590), distinct from acompte — seller returns double |
/v1/prorata | Calendar prorata of a monthly HT over from/to |
/v1/check-siret | SIRET/SIREN checksum only |
/v1/check-iban | IBAN ISO 13616 checksum only |
POST /mcp | MCP JSON-RPC: tools/list free, tools/call $0.01 |
See /llms.txt on the host. Isolated SKU — not Devis d’abord, not Fiche Pleine, not Ibis.
Related paid API: fr-invoice-mentions (mention blocks, $0.02).