invoicehubSAFE
EU e-invoice validation & generation MCP server (hosted, no install) — registry listing for api.invoicehub.dev/mcp
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
f1353d77e042OBSERVED · 2026-10-11Trust 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.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | NA |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | WARN |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (2)
streamable-http
Gates applied: no_behavioural_pass.
f1353d77e042full audit observations/trust-audit/mcp-server/einvoice-dev1__invoicehub-mcp.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-11 | f1353d77e042 | SAFE | B | 89 | first audit |
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.