# Invoicehub MCP server

Agent View of the PolicyLayer registry record for Invoicehub: identity, probed posture, risk grade, and all 4 tools classified. HTML page: https://policylayer.com/tools/dev-invoicehub-invoicehub

## Facts

- Server id: `https://api.invoicehub.dev/mcp`
- Homepage: https://github.com/einvoice-dev1/einvoice
- Registry record: grade C, identity unverified
- Lifecycle: active
- Auth posture: open
- Rate-limited: no
- Tools: 4 (3 with introspected schema)
- Tool categories present: Read, Write
- Context-window cost: 657 tokens per request — https://policylayer.com/token-cost/dev-invoicehub-invoicehub
- Tags: dev invoicehub invoicehub
- Record last modified: 2026-08-05T11:51:15.423Z

## Tools (4)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `list_supported_formats` | Read | Low | https://policylayer.com/tools/dev-invoicehub-invoicehub/list-supported-formats.md |
| `validate_invoice` | Read | Low | https://policylayer.com/tools/dev-invoicehub-invoicehub/validate-invoice.md |
| `convert_invoice` | Write | Medium | https://policylayer.com/tools/dev-invoicehub-invoicehub/convert-invoice.md |
| `generate_invoice` | Write | Medium | https://policylayer.com/tools/dev-invoicehub-invoicehub/generate-invoice.md |

## Tool descriptions

- `list_supported_formats` — List the e-invoice formats InvoiceHub validates today and what is on the roadmap.
- `validate_invoice` — Validate a UBL 2.1 invoice (or credit note) XML string against the official EN 16931 Schematron. Returns whether it is valid and any failing BR-* business rules.
- `convert_invoice` — Convert an e-invoice between formats via the shared EN 16931 canonical model: parse the source document, re-serialize as the target, and validate the result before returning it — never a document that has not been checked. Format ids: "U…
- `generate_invoice` — Generate an EN 16931-conformant UBL 2.1 invoice from structured fields. The result is self-validated before being returned. Provide seller, buyer, and at least one line; for standard-rated (category "S") lines include a vatRate and the s…

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=dev-invoicehub-invoicehub · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/dev-invoicehub-invoicehub