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E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931)

MCP server · hosted · v1.0.0 · io.github.nyo-agentti/einvoice-validator
Online · tested 1h agoNEW · 2h agoSeen in the registry 1h ago

Validate XRechnung, Peppol BIS 3 and EN 16931 invoices with KoSIT; explain rules; check auto-repair

Website ↗How to connect ↓

What it does

E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: invoicing. That makes it a candidate for tasks such as send and chase invoices.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.0.0
PriceNot in the registry
First seen24 Oct 2026
Last checked1h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)

Hosted endpoint

  • https://einvoice-validator-k2qw.onrender.com/mcp streamable-http

In Claude Code: claude mcp add --transport http e-invoice-validator-repair-check-xrechnung-peppol-bis-3-en-16931 https://einvoice-validator-k2qw.onrender.com/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "e-invoice-validator-repair-check-xrechnung-peppol-bis-3-en-16931": {
      "url": "https://einvoice-validator-k2qw.onrender.com/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 1h ago

ONLINE E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) answered an MCP connection on 24 Oct 2026 and introduced itself as einvoice-validator 1.0.0 (MCP protocol 2025-06-18).

2 tools offered to AI assistants

  • validate_einvoice · Validate an XRechnung / Peppol BIS 3 / EN 16931 e-invoice (UBL 2.1 Invoice/CreditNote or CII CrossIndustryInvoice XML) with the official KoSIT validator. Returns accepted/rejected, the matched scenario and every error and warning with rule
  • explain_rule · Explain an EN 16931 / XRechnung / Peppol business rule by id (e.g. BR-CO-10, BR-DE-15, PEPPOL-EN16931-R001): what it means and how to fix it.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers
Send and chase invoices
Invoicing
50%

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Ready-made AI agents

An MCP server is a connector you add to your own assistant. These are finished products that do the same job for you:

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://einvoice-validator-k2qw.onrender.com/mcpDECLAREDSRC-001 Official MCP Registry1h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry1h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry1h ago
Websitehttps://nyo-agentti.github.io/DECLAREDSRC-001 Official MCP Registry1h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry1h ago
Version1.0.0DECLAREDSRC-001 Official MCP Registry1h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry1h ago

Change history

  • NEW24 Oct 2026
    first seen in the index

Is this page accurate?

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Questions about E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931)

How do I connect E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931)?

Use the hosted endpoint https://einvoice-validator-k2qw.onrender.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) offer?

When Electra Index connected on 24 Oct 2026, it listed 2 tools: validate_einvoice, explain_rule. The full list is in "Live check" above.

Is E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.

What can I use E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) for?

Based on its description, it is most relevant to: send and chase invoices.