Atlas / MCP servers / einvoice-dev1 / invoicehub

invoicehubSAFE

mcp/einvoice-dev1/invoicehub-mcp

EU e-invoice validation & generation MCP server (hosted, no install) — registry listing for api.invoicehub.dev/mcp

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
—
Transport
streamable-http
License
MIT
Stars
0
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

Registry/plugin listing metadata for InvoiceHub's hosted MCP server. There's no local package here — the server itself is a hosted Streamable HTTP endpoint at https://api.invoicehub.dev/mcp, implemented in the main einvoice-dev1/einvoice monorepo (packages/api/src/mcp.ts). This repo exists to give that endpoint a public server.json and Claude Code plugin manifest, since MCP registries and the plugin marketplace require a public repository to list against.

What it does

  • validate_invoice — validate a UBL 2.1 invoice/credit note XML string against

the official EN 16931 Schematron (v1.3.16), returning any failing BR-* business rules

  • generate_invoice — generate an EN 16931-conformant UBL 2.1 invoice from

structured fields, self-validated before it's returned

  • list_supported_formats — formats supported today vs. on the roadmap

No install, no API key — the endpoint is public and every tool is read-only or self-validating.

Use it

{
"mcpServers": {
"invoicehub": {
"type": "http",
"url": "https://api.invoicehub.dev/mcp"
}
}
}

Claude Code:

claude mcp add --transport http invoicehub https://api.invoicehub.dev/mcp

Or install as a Claude Code plugin:

claude plugin marketplace add einvoice-dev1/invoicehub-mcp

Links

  • Docs: https://invoicehub.dev/docs
  • REST API + free/paid tiers: https://invoicehub.dev/pricing
  • Source of the MCP server itself: https://github.com/einvoice-dev1/einvoice/blob/main/packages/api/src/mcp.ts
Read from source at commit f1353d77e042OBSERVED · 2026-10-11
02

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfaceWARN
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (2)

MEDIUMAuth / authz · mcp.remote_no_auth · CWE-287, CWE-862
streamable-http
Why it matters. a network transport with no auth environment variable found
Fix. require a token
LOWInventory / provenance · mcp.no_tools_extracted · CWE-1104
server.json
Why it matters. the tool list is enumerated at runtime by tools/list, not declared in source
Fix. the page says so rather than showing an empty table

Gates applied: no_behavioural_pass.

Audited 2026-10-11 · audit v0.4.1 · source sha f1353d77e042full audit observations/trust-audit/mcp-server/einvoice-dev1__invoicehub-mcp.json · Report an issue / request a re-scan
03

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-11f1353d77e042SAFEB89first audit
04

Questions

What is the invoicehub MCP server?

EU e-invoice validation & generation MCP server (hosted, no install) — registry listing for api.invoicehub.dev/mcp

Is invoicehub safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does invoicehub need?

No credential environment variables were found in its source, so it appears to need none.

How does invoicehub run?

It speaks streamable-http, so it runs as a service you connect to over the network.

How current is this page?

The grade is for one exact copy of the source (f1353d77e042), read on 2026-10-11. The repository is watched and re-audited when it changes.

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