Name: Invoice MCP
Author: markslorach

LABSCO SUMMARY

The shipped instructions are the part that makes it consistent.

A model asked to "make an invoice" will invent a number format and a due date. The project instructions in the README fix that: your details, your terms, an invoice-number format built from customer initials and the date, and a rule that every invoice is confirmed with you before the PDF is written. Paste them into a project once and the output stops drifting. The invoice template itself is editable TSX with a live preview. The author notes local models via LM Studio are less reliable here than Claude.

What it is

A local server that renders invoices to PDF from a description. You give it the customer, the line items and the terms — briefly or in detail — and it produces the document.

What you get

A PDF invoice generated from natural language, saved to a path you choose and defaulting to the Desktop
Line items with quantity and rate, so hourly work and fixed-price work both render correctly
GBP, USD, CAD and EUR are supported currencies
An optional logo, supplied as a direct URL ending in .jpg, .png or .webp — SVG is not supported
The repository includes a set of project instructions you can paste in to pre-fill your business details, payment information, default terms and invoice numbering
A preview app renders the template at http://localhost:5173/ while you edit it

Requirements

Node v18 or newer. Clone the repository, npm install and npm run build in the server directory, then point your client at server/build/index.js. No account and no service — the PDF is produced locally.

Setup effort

Build from source — git clone https://github.com/markslorach/invoice-mcp.git

See installation options

USE CASES

01

Billing a client from a sentence

Say who and what for, confirm the details it reads back, and get the PDF.

02

Invoicing hourly work

Line items carry the rate in the description and hours in the quantity, so the maths is right on the page.

03

Keeping invoices looking the same every time

Pre-fill your business details and terms once so numbering and defaults do not drift.

04

Changing how the invoice looks

Edit the template and watch it render in the preview app before you send one.

BEFORE YOU INSTALL

What to know first

Requires

Node v18 or later

Where it runs

The documented client runs the server on your machine.

INSTALLATION

Connect your client

Server setup

TERMINAL

git clone https://github.com/markslorach/invoice-mcp.git
cd invoice-mcp/server
npm install
npm run build

MCP Clients

Claude Desktop

CLAUDE DESKTOP · JSON

{
  "mcpServers": {
    "Invoice MCP Server": {
      "command": "node",
      "args": [
        "<YOUR_PATH_TO_INVOICE_MCP>/server/build/index.js"
      ]
    }
  }
}

Invoice MCP