MCP E-Invoicing Core

Name: MCP E-Invoicing Core
Author: cmendezs

by cmendezsversion 1.34.1i★ –iRuns on your computer

Registry nameio.github.cmendezs/mcp-einvoicing-core

Install

Overview

Description from the maker (original English)

Base package for e-invoicing MCP servers. Compliance logic and signing keys stay with you.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 259/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Law & government data

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "einvoicing-core": {
      "command": "uvx",
      "args": [
        "mcp-einvoicing-core"
      ]
    }
  }
}

Run this in your terminal

claude mcp add einvoicing-core -- uvx mcp-einvoicing-core

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "einvoicing-core": {
      "command": "uvx",
      "args": [
        "mcp-einvoicing-core"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "einvoicing-core": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-einvoicing-core"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account cmendezs, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Law & government datai

More stars than 0% of the other 1758 servers in this category
Published to the registry more recently than 37% of the other 1758 servers in this category
Basic checks equal to or better than 100% of the other 1758 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP E-Invoicing Core safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.34.1) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Gerro: госзакупки для ИИ / Russian public procurement, Contract Compass, sanctions.io MCP by usefulapi

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Gerro: госзакупки для ИИ / Russian public procurement

Госзакупки РФ в ИИ-чате: поиск, обеспечения, документы. Russian public procurement for AI chats.

by gerro.ruEarlyUpdated today

Runs in the cloud✓ gerro.ru

Install

Contract Compass

Korean public procurement law: rule-engine rulings, statutes search, live court precedents

by sallim-appVery newUpdated today

Runs in the cloud✓ sallim.app

Install

sanctions.io MCP by usefulapi

Screen names against sanctions, PEP and watchlists; list screening sources in sanctions.io.

by m190EarlyUpdated today

Runs in the cloud✓ usefulapi.io

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

mcp-einvoicing-core

Topics: mcp mcp-server e-invoicing electronic-invoicing python fastmcp peppol en16931 ubl fatturapa xp-z12-013 nfe xml base-library

Base package for electronic invoicing MCP servers.

Provides shared Pydantic models, EN 16931 invoice tree, UBL/CII wire format serializers, an OAuth2 HTTP client, Peppol SMP lookup, digital signature primitives, and a compliance audit framework so country-specific packages share a common foundation without duplicating code.

What this package provides

Module	Contents
`models`	`InvoiceDocument`, `InvoiceParty`, `InvoiceLineItem`, `PartyAddress`, `VATSummary`, `PaymentTerms`, `DocumentValidationResult`, `TaxIdentifier` (per-country tax ID validators: IT, FR, DE, BE, ES, PL, BR, AE, SG, MX, IN), `TaxIdValidationResult`
`en16931`	`EN16931Invoice`, `EN16931Party`, `EN16931LineItem`, `EN16931Address`, `EN16931Tax`, `EN16931AllowanceCharge`, `EN16931PaymentMeans`
`credit_note`	`EN16931CreditNote` (type codes 381/383/384/385), `BillingReference`
`ubl_documents`	`BaseUBLDocument` — shared envelope for non-invoice UBL/Peppol document families (Peppol Ordering, jurisdiction extensions); explicitly outside the `InvoiceDocument`/`EN16931Invoice` tree
`wire_formats`	`EN16931UBLSerializer`, `EN16931UBLParser`, `EN16931CIISerializer`, `EN16931CIIParser`, `UBL_NSMAP`, `CII_NSMAP`
`convert`	`Syntax` (UBL, CII), `convert_wire_format` (auto-detect source, serialize to target)
`base_server`	`EInvoicingMCPServer`, `BaseDocumentGenerator`, `BaseDocumentValidator`, `BaseDocumentParser`, `BaseLifecycleManager`, `BasePartyValidator`, `BaseScopeInfo`, `SubmissionMetadata`, `SearchCriteria`, `SubmitResult`, `assert_not_read_only`, `scrub`
`http_client`	`BaseEInvoicingClient` (OAuth2, mTLS, bearer, API key, JWS, none), `OAuthConfig`, `OAuthValues`, `JWSConfig`, `APIKeyConfig`, `TokenCache`, `AuthMode`
`peppol`	`PeppolSMPClient`, `PeppolParticipantId`, `PeppolServiceInfo`, `PeppolLookupResult`, `PeppolEnvironment`, `PEPPOL_BIS_BILLING_30`, `resolve_naptr` (standalone U-NAPTR/SML DNS diagnostic)
`peppol.tools`	`register_peppol_tools` (mountable FastMCP plugin: participant lookup, service endpoint, DNS diagnostic, AS4 send, Directory search, plus 8 eDEC code list tools), `default_id_adapter`, `IdentifierAdapter` (national identifier adapter contract)
`peppol.codelists`	`CodeList`, `CodelistNotConfiguredError`, `load_codelist` and the eDEC lookup functions (document types, processes, participant ID schemes, transport profiles, SPIS use cases). Requires `EINVOICING_PEPPOL_CODELIST_DIR`, see Configuration below
`genericode`	`parse_genericode`, `CodeList`, `CodelistNotConfiguredError` — shared OASIS Genericode 1.0 parser (used by `peppol.codelists` and `en16931_codelists`)
`en16931_codelists`	`en16931_codelist_tools.register_en16931_codelist_tools` (mountable FastMCP plugin: country, currency, ICD, UNCL1001/1153/4461/5305, allowance/item/charge reason, MIME, EAS, VATEX lookup). Requires `EINVOICING_EN16931_CODELIST_DIR`, see Configuration below
`peppol.directory`	`PeppolDirectoryClient` (public Peppol Directory REST search, no auth), `PeppolDirectorySearchResult`, `PeppolBusinessCard`, `PeppolBusinessEntity`
`peppol.transport`	`AS4MessageEnvelope`, `AS4TransportClient`, `AS4ReceiptHandler`, `PeppolTransmitter`, `AS4Receipt`, `AS4Credentials` (Peppol AS4 outbound transmission, now with real WS-Security message signing); `AS4InboundHandler`, `AS4InboundMessage`, `AS4InboundError`, `StandardBusinessDocumentHeader` (AS4 inbound receiver, C3 role); `sign_as4_message`, `verify_as4_signature` (WS-Security primitives)
`peppol.trust`	`PeppolTrustStore`, `validate_certificate_chain`, `check_revocation`, `verify_smp_signature` — OpenPeppol PKI chain/revocation/signature validation. Requires `EINVOICING_PEPPOL_PKI_DIR` (root certs not yet published by OpenPeppol as of this release — logic-only until supplied)
`peppol.reporting`	`parse_eusr`, `parse_tsr`, `validate_eusr`, `validate_tsr` — Peppol EUSR/TSR service-provider statistics report models and validation (bundled XSD + Schematron, optional `[xslt2]` extra)
`peppol.mls`	`parse_mls`, `validate_mls`, `build_mls` — Peppol Message Level Status (MLS) model and validation (bundled Schematron, optional `[xslt2]` extra)
`schematron`	`SchematronValidator` (XSLT 1.0), `SaxonSchematronValidator` (XSLT 2.0/3.0, optional `[xslt2]` extra), `load_schematron_validator` (auto-dispatch factory), `get_xslt_version`, `BaseStructuredValidator`, `BaseXSDValidator`, `XSDValidator` (generic concrete XSD validator), `BaseJSONValidator`, `ValidationMessage`, `ValidationResult`
`schematron_artifacts`	`en16931_base_schematron_validator` (bundled, compiled CEN EN16931 base Schematron — `BR-*` rules only, no Peppol overlay; optional `[xslt2]` extra)
`digital_signature`	`BaseDocumentSigner`, `XAdESEPESSigner`, `XAdESSignerConfig`, `XMLDSigSigner`, `XMLDSigSignerConfig`, `CAdESSigner`, `CAdESSignerConfig`, `SelloDigitalSigner`, `SelloDigitalSignerConfig`, `load_certificate_der`
`endpoints`	`BaseEnvironmentEndpoints`, `EndpointSet`, `EndpointEnvironment` (sandbox/production URL routing)
`routing`	`RoutingIdentifier` (static validators: `validate_de_leitweg`), `RoutingIdValidationResult`
`profile_registry`	`ProfileEntry`, `ProfileRegistry`, `profile_registry`, `set_profile_registry`
`pdf`	`PDFEmbedder` (PDF/A-3 XML embedding); `extract(filename=None)` tries canonical Factur-X/XRechnung/ZUGFeRD filenames in turn, `identify()` reads XMP to detect a hybrid PDF and its conformance level
`pdf_tools`	`register_pdf_tools` (mountable FastMCP plugin: `identify_and_extract_pdf`), `identify_and_extract_pdf`
`qr`	`generate_qr_png_base64`
`xml_utils`	`format_amount`, `format_quantity`, `xml_element`, `xml_optional`, `validate_date_iso`, `validate_iban`, `resolve_xml_input`, `mark_untrusted`, `mark_untrusted_fields`, `filter_empty_values`, `format_error`
`download_rules`	`DownloadSpec`, `download_artefacts`
`testing`	`InvoiceFixtureFactory` (shared pytest fixtures)
`audit_log`	`AuditLog`, `AuditAction`, `get_audit_log`
`confirmation`	`ConfirmationGate`, `ConfirmationStore` (human-in-the-loop gate)
`exceptions`	`EInvoicingError`, `ValidationError`, `PartyValidationError`, `XSDValidationError`, `SchematronValidationError`, `DocumentGenerationError`, `AuthenticationError`, `PlatformError`
`logging_utils`	`setup_logging`, `get_logger`
`audit`	Compliance audit framework: `AuditReport`, `CheckResult`, `CheckFinding`, severity constants, `make_report`, `render_summary_table`, `parse_audit_args`, `run_check_core_coverage`, `run_check_version_compatibility`, `run_check_known_shared_helpers`, `run_check_resource_paths`, `TaxRate`, `load_rates` (optional `[audit]` extra)

Country packages

Country	Package	Standard	Scope	Coverage status
🇧🇪 Belgium	`mcp-einvoicing-be`	Peppol BIS 3.0 / PINT-BE	B2B, 1 January 2026	Live; Peppol-specific overlay rules not checked (EN 16931 base only)
🇧🇷 Brazil	`mcp-nfe-br`	NF-e / NFC-e (modelo 55/65, schema 4.00) / NFS-e Nacional	B2B (NF-e) + B2C (NFC-e), both mandatory since 2008	Live; IBS/CBS tax reform rollout ongoing through 2033
🇫🇷 France	`mcp-facture-electronique-fr`	NF XP Z12-012 / NF XP Z12-013 / Factur-X / UBL 2.1 / CII	B2B, phased rollout from 1 September 2026	Live
🇩🇪 Germany	`mcp-einvoicing-de`	ZUGFeRD 2.x / XRechnung 3.x	B2B, phased 2025 to 2028	Live
🇮🇳 India	`mcp-einvoicing-in`	GST e-invoicing / FORM GST INV-01 schema v1.1 / IRP-IRN (INV + CRN + DBN)	B2B + B2G, mandatory under CGST Rule 48(4) for taxpayers with AATO above ₹5 crore, since 1 August 2023	Pre-release (v0.1.0, unpublished); Phase A only (build + offline validation + QR rendering) — live IRP submission pending the NIC API spec
🇮🇹 Italy	`mcp-fattura-elettronica-it`	FatturaPA / SDI	B2G + B2B + B2C, mandatory since 2019 (B2G since 2014)	Live
🇲🇽 Mexico	`mcp-cfdi-mx`	CFDI 4.0 / Complemento de Pagos 2.0	B2B + B2G, mandatory nationwide	Live; PAC submission transport pending
🇵🇱 Poland	`mcp-ksef-pl`	KSeF FA(3) / FA(2) / Peppol BIS 3.0	B2B, phased February 2026 to January 2027	Live; batch session flow not implemented
🇸🇬 Singapore	`mcp-invoicenow-sg`	PINT-SG v1.4.1 / SG Peppol BIS Billing 3.0	B2B, mandatory for GST-registered businesses from April 2026	Live; validation scope limited to IRAS C5 acceptance checks, PINT-SG jurisdiction Schematron and EN 16931 base validation not yet wired
🇪🇸 Spain	`mcp-facturacion-electronica-es`	Factura-e / VeriFactu / SII / FACe	Pending Orden Ministerial, targeted 2026-10-01	Live for VeriFactu/SII; B2B format wiring blocked on pending Orden Ministerial
🇦🇪 United Arab Emirates	`mcp-einvoicing-ae`	PINT AE (billing + self-billing) / Peppol AE TDD	B2B + B2G, voluntary pilot from July 2026, mandatory for large taxpayers from January 2027	Live; validates CEN EN16931 base Schematron only, PINT AE jurisdiction overlay and TDD validation not yet available

Installation

pip install mcp-einvoicing-core

For the compliance audit framework (used by country package CI):

pip install mcp-einvoicing-core[audit]

For XSLT 2.0/3.0 Schematron validation (SaxonSchematronValidator — needed for Schematron rule sets using XPath 2.0+ constructs, e.g. FNFE-MPE Factur-X 1.08 / ZUGFeRD):

pip install mcp-einvoicing-core[xslt2]

Configuration

Variable	Used by	Purpose
`EINVOICING_PEPPOL_CODELIST_DIR`	`peppol.codelists` (and the `peppol.tools` codelist tools)	Local directory containing your own copy of the OpenPeppol eDEC Code Lists. Not bundled with this package: the eDEC Code Lists carry no confirmed redistribution grant from OpenPeppol, so core ships only the parser and lookup tools, never the data itself. Download the "as GeneriCode" export for each artifact (Document Types, Participant Identifier Schemes, Processes, Transport Profiles, SPIS Use Case) from docs.peppol.eu/edelivery/codelists and point this variable at the directory containing them. Filenames are matched by prefix, so a version bump (e.g. v9.7 to v9.8) needs no code change. Without this set, the codelist tools return a `configured: false` result with setup instructions rather than raising.

| `EINV

Only the beginning is shown; read the rest in the repo

MCP E-Invoicing Core

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Law & government datai

Common questions

Alternatives

Gerro: госзакупки для ИИ / Russian public procurement

Contract Compass

sanctions.io MCP by usefulapi

README from the maker

mcp-einvoicing-core

What this package provides

Country packages

Installation

Configuration