All servers · Buy Pro $19 · Source · Claude Desktop bundle (.mcpb)
Say "make an invoice for Acme, 12 hours at 90 EUR, due in 14 days" and get a real PDF you can send. This MCP server stores your business profile and your clients, allocates a sequential invoice number that is never reused, computes the subtotal, any discount, one tax line per VAT rate and the total in integer minor units, and renders an A4 PDF with your issuer and payment details, a wrapping item table and a proper totals block. It also tracks payments and, on Pro, reports what is overdue and by how many days. Everything is stored in plain JSON files on your own machine; nothing is uploaded anywhere.
Create numbered invoices with tax lines and a real PDF from chat -- no invoicing SaaS required.
npm publish for @theluckystrike/mcp-invoice is pending. Until then, the .mcpb one-click bundle or a clone+build
is the working path -- both are verified below.
One-click (.mcpb): download invoice.mcpb from the latest release and double-click it in Claude Desktop:
https://github.com/theluckystrike/mcp-servers/releases/latest
Claude Desktop (claude_desktop_config.json):
{
"mcpServers": {
"invoice": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-invoice"]
}
}
}
Claude Code:
claude mcp add invoice -- npx -y @theluckystrike/mcp-invoice
Cursor (.cursor/mcp.json):
{
"mcpServers": {
"invoice": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-invoice"]
}
}
}
The npx form above starts working the moment the package is published. Until then, use the .mcpb bundle above, or
build from source with exactly these three commands:
git clone https://github.com/theluckystrike/mcp-servers.git && cd mcp-servers
npm install
npm run build -w packages/mcp-license -w servers/invoice
Then point your client's command at node with one arg: the absolute path to servers/invoice/dist/index.js.
To run in Pro mode set MCP_LICENSE_KEY in the same config block, or call license_activate once with your key.
| Tool | What it does |
|---|---|
business_set |
Store the issuer profile: name, address, email, VAT id, IBAN, bank, logo, default currency, default tax rate, payment terms, invoice prefix |
client_add |
Add or update a client (name, address, email, VAT id) |
client_list |
List stored clients with their ids |
invoice_create |
Create an invoice from line items; allocates the next number, computes discount, tax per rate and total. If the client is created from a bare name the response says the BILL TO block has no address and how to add one |
invoice_from_hours |
Shortcut: bill one client for N hours at an hourly rate |
invoice_list |
List invoices, filtered by status, client and issue-date range |
invoice_get |
Full stored record for one invoice number |
invoice_mark_paid |
Record a payment in full or in part; reports the balance due |
invoice_pdf |
Render the A4 PDF and return the file path |
overdue_report |
Unpaid invoices past due, days overdue, outstanding totals per currency. Free |
license_status |
Show free or Pro mode |
license_activate |
Activate a Pro key (verified offline) |
Resource: invoices://open returns every unpaid or partly paid invoice as JSON.
| You say | Tool |
|---|---|
| "Set up my business: Acme Consulting, EUR, 23% VAT, 14 day terms." | business_set |
| "Add a client: Beta Corp, their VAT id is..., email billing@beta.example." | client_add |
| "List my clients." | client_list |
| "Invoice Acme for 12 hours at 90 EUR plus 300 EUR setup, 23% VAT, PDF." | invoice_create + invoice_pdf |
| "Bill Beta Corp for 5 hours at 120 EUR." | invoice_from_hours |
| "Show me every unpaid invoice from August." | invoice_list |
| "Pull up invoice INV-2026-0007." | invoice_get |
| "Mark INV-2026-0007 as paid in full." | invoice_mark_paid |
| "Which invoices are unpaid and overdue?" | overdue_report |
| "Am I on the free plan or Pro?" | license_status |
From docs/USER_VALUE_R2.md, the exact request tested end to end and independently checked against the
arithmetic.
You: Invoice Acme for 12 hours of API work at 90 EUR plus a 300 EUR setup fee,
23% VAT, due in 14 days, and give me the PDF.
invoice_create {
client: "Acme", currency: "EUR", due_days: 14,
items: [
{ description: "API work", quantity: 12, unit_price: 90, tax_rate: 23 },
{ description: "Setup fee", quantity: 1, unit_price: 300, tax_rate: 23 }
]
}
-> INV-2026-0001, client "Acme" created with no address on file
invoice_pdf { number: "INV-2026-0001" }
-> /Users/you/.../invoice/pdf/INV-2026-0001.pdf
Assistant: Created INV-2026-0001 for Acme.
API work 12 h x EUR 90.00 = EUR 1080.00
Setup fee 1 x EUR 300.00 = EUR 300.00
Subtotal EUR 1380.00
Tax 23% on EUR 1380.00 EUR 317.40
Total EUR 1697.40
Note: Acme was created from a bare name with no address. Add one with
client_add before you send this. PDF: INV-2026-0001.pdf
The arithmetic: 12 x 90 = 1080.00, plus 300.00 = 1380.00 subtotal; 23% of 1380.00 = 317.40; total 1697.40 EUR. Every amount on the PDF and in the text response carries its currency code -- nothing is ever shown as a bare number.
| Free | Pro | |
|---|---|---|
| Invoices | 3 per calendar month | Unlimited |
overdue_report |
Yes, unlimited | Yes, unlimited |
| Carries the line "Generated with mcp-invoice by theluckystrike" | No branding | |
| Logo on the PDF | No | Yes |
| Custom invoice prefix | No, fixed INV |
Yes |
| Clients, tax lines, discounts, payments, multi-currency | Yes | Yes |
Pro is a one-time $19, or $39 for every server in the collection, lifetime.
Get Pro: https://mcp.zovo.one/buy/invoice
Invoice numbers are PREFIX-YYYY-NNNN. The counter is persisted per prefix and year and is written before the invoice is stored, so a crash burns a number rather than reusing one; existing numbers are also scanned so a restored data file can never hand back a number that is already on a sent document.
Every money value printed anywhere - line unit prices, line amounts, subtotal, discount, each tax line, the total and the balance due, in the text response and on the PDF - carries its currency code, for example EUR 1080.00. No amount is ever shown as a bare number.
All amounts are held as integer minor units (cents, or whole yen for zero-decimal currencies such as JPY). Rounding is per line, then summed: each line's gross is rounded first, an invoice-level discount_percent is applied and rounded per line, tax is computed and rounded per line and then grouped into one line per rate, and the totals are plain integer sums of those already-rounded values. A printed total can therefore never disagree with the printed lines. Dates are ISO YYYY-MM-DD.
Business profile, clients, invoices and the number counter live under
${XDG_DATA_HOME:-~/.local/share}/mcp-servers/invoice/ as separate JSON files, plus a pdf/ subfolder
holding the rendered PDFs. Every mutating call (business_set, client_add, invoice_create,
invoice_from_hours, invoice_mark_paid) runs inside locked(), which takes an advisory lock file at
.../invoice/.lock for the duration of the call -- this is what makes number allocation safe when two
invoices are created in the same second, since the counter read, increment and invoice write all happen
under one lock. Saves go to a temporary file and are renamed into place. To back up your invoicing data,
copy the whole invoice/ data directory, including pdf/ if you want the rendered files too -- they can
always be regenerated from the stored records with invoice_pdf.
overdue_report and
everything else (clients, tax lines, discounts, payments, multi-currency) is unrestricted on free.client_add as the fix, but nothing blocks you from sending a PDF with
a bare-name BILL TO block if you ignore the note.npx hangs or fails to find the package: npm publish for this package is pending. Use the .mcpb
bundle or the clone-and-build path above until it lands..mcpb bundle: it installs into Claude Desktop directly; there is no separate config
step.servers/invoice/dist/index.js after npm run build.
Point your client's command at node with that absolute path as the only argument.node -v.invoice_pdf uses pdfkit, a pure-JS renderer with no native
dependency, so failures are almost always a missing or malformed business_set field (check
invoice_get first) rather than an environment issue.invoice_list shows what already counted against it.--mcp-debug.All data stays local, in ${XDG_DATA_HOME:-~/.local/share}/mcp-servers/invoice/. There are no network calls: license keys are verified offline with a public key compiled into the package, and PDFs are rendered on your machine.
invoice_summary output there maps directly onto invoice_create line items here.Can I put several VAT rates on one invoice? Yes. Tax rate is per line item. The totals block prints one tax line per distinct rate, so a 23% line and a 0% reverse-charge line appear separately and the total adds up.
Is the PDF good enough to send to a client's accounts department?
It is a single page A4 with issuer and client blocks, dates, a line table with per-line tax, subtotal,
tax lines, total, and payment details with IBAN and reference. Add the client's address with client_add
first, otherwise BILL TO shows only the name.
What is the invoice number format and can I change it?
INV-YYYY-NNNN, allocated in sequence and never reused. The prefix is configurable with business_set;
a prefix other than INV is a Pro feature.
Does anything get uploaded when the PDF is rendered?
No. Rendering is local with pdfkit, and the invoice records live in
~/.local/share/mcp-servers/invoice/. The server makes no network calls at all.
How exact is the money arithmetic? Amounts are integer minor units. Each line is rounded once, then lines are summed, so 12 h at 90 EUR plus 300 EUR with 23% VAT gives 1380.00 plus 317.40 = 1697.40 with no floating point residue.
Built by theluckystrike.
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