Create free invoices from your AI assistant via a pre-filled blankinvoicemaker.com link.
An MCP server that lets any AI assistant (Claude, and other MCP clients) create invoices with Blank Invoice Maker — the free, no-signup, no-watermark invoice generator.
Ask your assistant to make an invoice, and it returns a link that opens blankinvoicemaker.com with the invoice fully pre-filled, ready to review and download as a PDF.
Privacy by design. The invoice data travels inside the link's URL fragment (
#invoice=…) and is decoded entirely in your browser. Nothing is uploaded — consistent with Blank Invoice Maker's no-account, no-server-storage model.
| Tool | What it does |
|---|---|
list_templates | Lists the industry invoice templates available at blankinvoicemaker.com/templates (slug, name, description, URL). |
create_invoice | Builds an invoice from your details and returns a pre-filled blankinvoicemaker.com link to review and download. |
create_invoice example"Invoice Globex LLC for 10 hours of design at $90/hr and one $120 hosting setup, net 14, in GBP."
The assistant calls create_invoice with:
{
"business": { "name": "Acme Studio", "email": "hi@acme.studio" },
"client": { "name": "Globex LLC", "email": "ap@globex.com" },
"items": [
{ "description": "Design work", "quantity": 10, "unitPrice": 90, "unit": "hours" },
{ "description": "Hosting setup", "quantity": 1, "unitPrice": 120 }
],
"currency": "GBP",
"paymentTerms": "Net 14"
}
…and returns a https://blankinvoicemaker.com/#invoice=… link that opens the editor pre-filled.
Requires Node.js 18+.
Add to your claude_desktop_config.json:
{
"mcpServers": {
"blank-invoice-maker": {
"command": "npx",
"args": ["-y", "blank-invoice-maker-mcp"]
}
}
}
Run the server over stdio:
npx -y blank-invoice-maker-mcp
create_invoice maps your input into the invoice structure used by blankinvoicemaker.com, compresses it with lz-string, and appends it to the site URL as a #invoice= fragment. Opening the link hydrates the editor in your browser — no signup, no watermark, no data leaving your machine.
npm install
npm run build # compile TypeScript to dist/
npm test # build + run the unit tests
npm start # run the server over stdio
src/templates-data.ts is generated from the Blank Invoice Maker template registry:
BIM_APP_DIR=/path/to/blank-invoice-maker npm run generate:templates
Source-derived launch command. Check the maintainer’s required arguments and credentials before running:
npx -y blank-invoice-maker-mcpMerge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.
{
"mcpServers": {
"io-github-innarm-blank-invoice-maker": {
"command": "npx",
"args": [
"-y",
"blank-invoice-maker-mcp"
]
}
}
}Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.
Claude Desktop setup referenceblank-invoice-maker-mcpnpmio.github.InnarM/blank-invoice-maker works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.