Borrowing it
Nothing to install: this file belongs to InvoiceXML/invoicexml-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/InvoiceXML/invoicexml-mcp/main/GEMINI.mdgit clone --depth 1 https://github.com/InvoiceXML/invoicexml-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/invoicexml/invoicexml-mcp/gemini-md)<a href="https://agentmods.dev/instructions/invoicexml/invoicexml-mcp/gemini-md"><img src="https://agentmods.dev/badge/instructions/invoicexml/invoicexml-mcp/gemini-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/invoicexml/invoicexml-mcp/gemini-md"><img src="https://agentmods.dev/badge/instructions/invoicexml/invoicexml-mcp/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01534 | $0.01534 |
| Opus 5.5 | $0.00614 | $0.00614 |
| Sonnet 5.5 | $0.00307 | $0.00307 |
| Haiku 4.5 | $0.00153 | $0.00153 |
Grade A, and why
invoicexml-mcp GEMINI.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
InvoiceXML MCP Server
InvoiceXML turns structured invoice data into compliant electronic invoices, checks existing invoices against the EN 16931 standard, and converts between formats, all as native tools you can call directly. It covers UBL (Peppol BIS Billing 3.0), UN/CEFACT CII, German XRechnung, and the hybrid PDF formats Factur-X and ZUGFeRD.
Use these tools whenever a user needs to create, check, convert, read, or render a European e-invoice. You do not need to know the EN 16931 specification or run any validation yourself: call the right tool and surface its result.
Connecting
- Hosted (recommended):
https://mcp.invoicexml.com, fully managed, secured with OAuth 2.1 (the user signs in; no API key to paste). - Self-hosted: open source at
https://github.com/InvoiceXML/invoicexml-mcp, run on your own infrastructure with an InvoiceXML API key.
Free account and credits: https://www.invoicexml.com/account/signup.
Landing page: https://www.invoicexml.com/mcp-server.
Tools
| Tool | Use it when the user wants to... |
|---|---|
create_invoice |
Generate a compliant invoice (UBL, CII, XRechnung, Factur-X, or ZUGFeRD) from structured data. |
validate_xml_invoice |
Check a UBL / CII / XRechnung XML document against EN 16931 and Schematron. |
validate_pdf_invoice |
Check a Factur-X / ZUGFeRD hybrid PDF and the XML embedded inside it. |
render_invoice |
Turn UBL / CII / XRechnung XML into a clean, human-readable PDF preview. |
extract_invoice |
Pull the structured JSON or the embedded CII XML out of a hybrid PDF, or the structured JSON out of a UBL / CII XML. |
embed_invoice |
Combine a PDF and a CII XML into a Factur-X / ZUGFeRD hybrid PDF. |
email_invoice |
Create an invoice and email it from the user's own verified domain. Sends a real email: get the user's go-ahead first. |
email_embedded_invoice |
Combine a PDF and a CII XML into a hybrid PDF and email it from the user's own verified domain. Sends a real email: get the user's go-ahead first. |
convert_invoice |
Convert between UBL, CII, XRechnung, Factur-X, and ZUGFeRD. |
transform_invoice |
Turn an ordinary PDF invoice (no embedded XML) into an e-invoice; AI reads the data, so the user must check the result. |
render_validation_report |
Validate an invoice or Order-X order and get the result as a printable PDF report. |
create_order |
Generate an Order-X purchase order (hybrid PDF or Cross-Industry Order XML). |
validate_order |
Check an Order-X PDF or Cross-Industry Order XML. |
get_account |
Show the account's plan and remaining credits (free to call). |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago Changed · +7 lines · +156 tokens per session 13cf5b2982c6
- 15d ago Changed · +9 lines · +174 tokens per session cf83881b7afd
- 29d ago Changed · +10 lines · +204 tokens per session 6dd91b383a0b
- 2mo ago First seen · 76 lines · 1,000 tokens per session scan A 76cbf2aa5dd2
invoicexml-mcp GEMINI.md is an instructions file published in the GitHub repository InvoiceXML/invoicexml-mcp (5 stars, last pushed yesterday), licensed MIT. It adds 1,534 tokens to every session, about $0.0061 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
invoicexml-mcp GEMINI.md compared with instructions from other repositories
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|---|---|---|---|---|---|---|---|
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| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |