All servers · Payments & accounting

Attestwire

com.attestwire/en16931 · v1.2.2

Measured by MCP Station

Instruction-like text was found in generate_invoice, send_feedback. This is a pattern match, not a verdict. What we look for

Description written by the publisher, not verified

EN 16931: validate invoice data, UBL/CII or PDF; emit XRechnung/Peppol XML, never a PDF.

Connect

claude mcp add --transport http en16931 https://api.attestwire.com/mcp

{
  "mcpServers": {
    "en16931": {
      "url": "https://api.attestwire.com/mcp"
    }
  }
}

Tools as reported by the server

• diagnose_invoice
  Explain local validation and supplied provider rejection/SVRL findings. Send exactly one of invoice (the JSON model) or xml (UBL/CII text, not a PDF). Revalidate caller-reviewed JSON edits or revised XML using the original hash and confirmed:true. Never invent business values or send an invoice. 1 d
• lookup_peppol_participant
  Read-only production lookup through OpenPeppol. Check advertised BIS Billing invoice or credit-note support and an optional invoice identifier mismatch. Does not send, verify delivery, or validate endpoint certificates. 1 document per conclusive result; unavailable is uncharged. The participant iden
• verify_vat_vies
  Live VAT-number verification with dated evidence. Distinguishes valid, invalid, and unavailable; one bounded retry, no Attestwire cache. Sends the VAT number to the European Commission VIES service. 1 document per valid/invalid result; unavailable is uncharged. Not a tax determination. REQUIRES AN A
• get_recipient_profile
  From the buyer's country and one identifier (VAT ID, Leitweg-ID, SIREN/SIRET, KBO number, GLN or Peppol ID): the identifier checked; name and address from VIES or the French register when they give them; Peppol registration (SML/SMP, and the Directory card when there is one); and how to invoice: cha
• validate_invoice
  Validate an invoice, given as a JSON object, against EN 16931 and its national CIUS rule sets (XRechnung UBL/CII, Peppol BIS 3.0, Factur-X). Returns every failure as a "teaching error": the official rule id, the business term (BT-/BG-) it constrains, what the regulation actually requires, and a conc
• validate_invoice_xml
  Validate an e-invoice FILE the user already has: a UBL 2.1 Invoice, a UBL 2.1 CreditNote, a UN/CEFACT CII CrossIndustryInvoice (invoices and credit notes alike), or a Factur-X or ZUGFeRD PDF. The file is read into the invoice model and EN 16931 plus the CIUS rules (XRechnung UBL and CII, Peppol BIS
• generate_invoice
  Generate compliant e-invoice XML from a JSON invoice, in either EN 16931 syntax. Profiles: en16931, xrechnung-ubl, peppol-bis-3, xrechnung-cii, facturx-en16931 — the profile chooses the syntax, and xrechnung-cii and facturx-en16931 come back as CII. The invoice is validated first and generation is r
• explain_rule
  Explain one EN 16931 / XRechnung / Peppol BIS rule in plain English: what it requires, why, the business term it constrains, a concrete fix and an example. 321 rules explained — BR-*, BR-CO-*, BR-<category>-*, BR-DE-*, PEPPOL-EN16931-* and this library's own ATW-*. That is every rule id this validat
• check_vies_status
  Current availability of VIES, the European Commission service that validates EU VAT numbers. Per-member-state status, latency and 24h/7d uptime, from a monitor that polls all member states every 5 minutes. Use this when EU VAT number validation is failing, to tell "their VAT number is wrong" apart f
• check_french_readiness
  Look up a French company by SIREN, SIRET or name in INSEE SIRENE open data, for the 2026-2027 French e-invoicing mandate. Confirms the company exists and is active. It CANNOT confirm whether the company has registered with an approved platform — that lives only in the CAPTCHA-protected DGFiP annuair
• list_approved_platforms
  The official list of Plateformes Agréées (PA, formerly PDP) that DGFiP has approved to transmit invoices under the French e-invoicing mandate, from the published open dataset. Optionally filtered by name or SIREN. FREE and needs no API key.
• issue_api_key
  Mint a free Attestwire API key (100 documents/month, no signup flow, no card) for the tools that need one. THE KEY IS RETURNED ONCE AND CANNOT BE RECOVERED — only its SHA-256 hash is stored — so show it to the user verbatim and tell them to save it before doing anything else. MINTING DOES NOT AUTHEN
• get_upgrade_link
  Return a hosted checkout URL for upgrading an Attestwire key to a paid plan (Solo: 1,000 documents/month for €9/month; Starter: 5,000 for €29/month; Scale: 50,000 for €99/month (EUR, plus VAT where due)). THIS DOES NOT BUY ANYTHING. It creates a checkout link and charges nothing; a human must open t
• send_feedback
  Tell the people who build this server what the user was trying to do. CALL IT when the user wanted something none of these tools does, when a result looked wrong or was confusing, or when you had to work around a tool. Describe the GOAL in your own words ("check a German public-sector invoice before

Website · JSON · Text for agents · Registry updated 2026-09-27