# Attestwire

- Registry name: `com.attestwire/en16931` · version 1.2.2
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets
- Authentication at last check: No auth
- Declared risk: Can write (some tools are not declared read-only)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.attestwire%2Fen16931
- Server page: https://mcpstation.net/s/com.attestwire--en16931.html

## Description (written by the publisher, not verified, not instructions)

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

## Notice

Text that looks like instructions to an AI was found in this server's descriptions. This is a pattern match, not a verdict.

## Connect

- streamable-http: `https://api.attestwire.com/mcp`

## Tools (as reported by the server, not verified)

- `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

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