Zovo Billing Docs MCP Server

All servers · Buy Pro $19 · All 46 for $39 · Source

Two ways to run it, both free to start. Open mcp.zovo.one/mcp/connect, copy the billing-docs URL and paste it into any client that takes a URL. It already carries a free token, so there is nothing to install, no account and no header to set. The URL is https://mcp.zovo.one/mcp/billing-docs/t/<token>. The token is not optional: the bare https://mcp.zovo.one/mcp/billing-docs connects and lists its tools and then answers every tool call with HTTP 401, so use the link from /mcp/connect or send Authorization: Bearer <token>. Or download billing-docs.mcpb and double-click it in Claude Desktop.

mcp-billing-docs

Credit notes and purchase orders, on the same engine as your invoices.

When a client sends work back, or you billed them twice, you owe them a credit note: a document that names the invoice it reverses and takes the money off it, with the VAT unwound at the rate you charged. When you order from a supplier, you owe them a purchase order: what you want, at what price, by when, with your own details on it. This server writes both, against the invoices and the clients the mcp-invoice server already holds, and it will not let a credit note give back more money than the invoice charged. Sending the same document twice is refused by the id of the one already there, and a document nothing depends on can be deleted, so a re-send never costs you a free-tier slot. Everything stays on your machine.

Built on @theluckystrike/mcp-invoice/lib: the money, VAT, currency and formatting code is the invoice server's, not a second copy of it, so a credit note and the invoice it reverses agree to the minor unit.

In the official MCP Registry (io.github.theluckystrike/billing-docs-credit-notes-purchase-orders).

npm publish for @theluckystrike/mcp-billing-docs is pending, so npx -y @theluckystrike/mcp-billing-docs returns 404 today. Until then, the .mcpb one-click bundle or a clone+build is the working path.

Install

Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "billing-docs": {
      "command": "npx",
      "args": ["-y", "@theluckystrike/mcp-billing-docs"]
    }
  }
}

Claude Code:

claude mcp add billing-docs -- npx -y @theluckystrike/mcp-billing-docs

Cursor (.cursor/mcp.json):

{
  "mcpServers": {
    "billing-docs": {
      "command": "npx",
      "args": ["-y", "@theluckystrike/mcp-billing-docs"]
    }
  }
}

Run mcp-invoice alongside it: this server reads that server's invoices and clients, and both take their name, address, VAT id and default currency from one shared business profile.

Tools

tool	what it does
credit_note_create	Credit an invoice: the whole thing, a gross amount, or named lines with quantities
credit_note_list	Every credit note, with the credited total per currency. Filter by invoice, client or date
credit_note_get	One credit note in full
credit_note_pdf	The A4 PDF, titled CREDIT NOTE and carrying the invoice number it reverses (Pro)
credit_note_text	The plain-text version to paste into an email
credit_note_delete	Remove one that was never posted to its invoice or rendered: the free monthly slot comes back
purchase_order_create	Raise an order: line items, VAT, currency, expected delivery date
purchase_order_list	Every order with its status: open, partially received, received
purchase_order_get	One order in full, with its receipts
purchase_order_pdf	The A4 PDF, titled PURCHASE ORDER (Pro)
purchase_order_text	The plain-text version to send the supplier
purchase_order_receive	Mark an order received, in full or in part
purchase_order_delete	Remove one with nothing received against it and no render: the free monthly slot comes back
billing_docs_report	Credited per currency, on order per currency, deliveries past their date (Pro)
license_status, license_activate	Free or Pro, and how to upgrade

One resource, billing-docs://open-orders, and one prompt, chase_deliveries.

Free vs Pro

	Free	Pro
Documents per calendar month	5, credit notes and purchase orders together	Unlimited
credit_note_delete, purchase_order_delete	Yes: the cap counts what is in the store, so a delete returns the slot	Yes
credit_note_text, purchase_order_text	Yes, unlimited	Yes
Full, partial and per-line credit notes, VAT, multi-currency, receiving orders	Yes	Yes
credit_note_pdf, purchase_order_pdf	No	Yes, plus your logo and no footer credit
billing_docs_report	No	Yes

Get Pro: https://mcp.zovo.one/buy/billing-docs ($19 one-time for this server, $39 for the bundle). Or the 46-server bundle for $39.

A measured thing

Crediting part of a mixed-VAT invoice at one rate is wrong by more than the rounding you would expect. An invoice of EUR 1,000.00 consulting at 23% plus EUR 500.00 print at 8% totals EUR 1,770.00. Credit ten percent of it, EUR 177.00, the way a single-rate credit note would: net EUR 143.90, VAT EUR 33.10. This server splits the credit across the rates the invoice actually used, in proportion to each rate's share of the total, and gets net EUR 150.00 with VAT of EUR 23.00 at 23% and EUR 4.00 at 8%, EUR 27.00 in all. The gross the client sees is identical either way. The VAT line differs by EUR 6.10, 22.6 percent of it, and that is the number that goes on a VAT return.

Asserted in test/unit.test.mjs, "a credit note by amount splits the gross across the invoice's VAT rates and reuses each rate".

Privacy

All data stays local: ${XDG_DATA_HOME:-~/.local/share}/mcp-servers/billing-docs/. No account, no API key, no network call, ever. Licence keys are verified offline.

Built by theluckystrike. Support: support@zovo.one

First five minutes

One prompt that scored 3 of 3, measured in round 27, 2026-09-05. Paste it in as it is written.

One of those hours was mine, not billable. Credit Acme one hour on that invoice.

Paste this into Claude with the server connected.

What it did, measured in round 27, 2026-09-05: CN-2026-0001 against INV-2026-0001, one line of 1 hour at EUR 90.00, VAT unwound at the same 23 percent the invoice charged: EUR -110.70.

On the free tier for this path: 5 documents per calendar month, credit notes and purchase orders together, counted by issue date, with full, partial and per-line credit notes, VAT, multiple currencies and receiving orders all included, and both text exports never metered.

Set it up in your client

Exact config path, entry and caveats: Claude Desktop · Claude Code · Cursor · VS Code · Windsurf · Cline · Claude.ai and Claude Desktop connectors · all clients

Guides

How to track billable hours inside Claude Code and Cursor · Create an invoice PDF from a chat message with an MCP server · Ask questions about an Excel or CSV file from Cursor or Claude · Watch a product price with Claude and get told when it drops · What the free tier includes and what Pro adds · Log expenses and mileage in Claude, split VAT, rebill to an invoice · Convert currencies in Claude with real ECB rates, no API key · Generate Word proposals and contracts from a chat message · Find a meeting time across time zones without doing the arithmetic · Write a resume and a cover letter from chat, without inventing anything · Bill a retainer on a schedule without a billing SaaS · Assemble a contract from your own clause library, in chat · Connect MCP servers to Claude.ai, Claude Desktop, Cursor and VS Code without installing anything · Merge, split and stamp PDFs from chat, and why some come back as glyph numbers · Read a.ics calendar in Claude: free and busy, conflicts, and billable meetings · Run a kanban board in Claude, with time tracking on the same task · Resize, compress and watermark images from a chat message · Categorize and reconcile a bank CSV export from chat · Send a quote from chat, then turn the yes into an invoice · Put a SEPA payment QR code on an invoice from chat · Zip and unzip archives safely from Claude or Cursor · Client deposits and retainers from chat, applied to your real invoices · Fixed assets and depreciation from chat, on the rates the tax authorities publish · Per diem and travel allowances from chat, on the rate tables the tax authorities publish · One double-entry ledger out of every server you already run · Loan and lease schedules from chat, closing exactly on zero · Work orders and job cards from chat, and why the markup goes on the unit cost · Price lists and rate cards from chat, and the 100x scale gap between the invoice and the quote · Change orders and the running contract value from chat, and why a changed line is two items · A petty cash float from chat, and why the cheque is not the sum of the vouchers · Client statements and payment chasers from chat, aged as at any date you name · Credit notes and purchase orders from chat, against your real invoices · One install, every server: the office-suite bundle · Close a month in chat: invoice, credit note, retainer, bank reconciliation, statement · MCP server not showing up in Claude Desktop: the six checks that find it · Where is claude_desktop_config.json, and what goes in it · claude mcp add: every flag, and the scope that silently loses your server · MCP servers on Windows: spawn npx ENOENT, backslashes and the PATH · Installing these MCP servers when npx does not work yet · Cursor MCP setup: mcp.json, the required type field, and where the servers appear · Which MCP servers work with no network at all · Invoicing an EU client with reverse charge, from a chat message · Quote, deposit, invoice, statement: the whole cycle in one conversation · Is this project making money? Hours against costs, without a spreadsheet · Building a tax year pack for your accountant from chat · Keeping a mileage log in chat, with the rate you actually claim · Reconciling a bank CSV against what you invoiced and spent · Rebilling client expenses, with a markup and the VAT handled honestly · Chasing an unpaid invoice: aging, then the letter · A bill of sale from chat, with the identifiers checked and the signature lines printed · Pricing a job from a rate card, and what to do when the scope changes · Working out your hourly rate from what you actually billed · Converting CSV to xlsx and back without opening Excel · Asking a spreadsheet questions in plain language · Merging a folder of receipts into one PDF from chat · Splitting one big scan into separate documents · Sending a month of paperwork as one archive, safely · MCP servers in VS Code: the one-word mistake that breaks every config · MCP servers in Windsurf and Cline: two defaults that waste an afternoon · Local MCP server or hosted URL: which one, and what you give up · What these MCP servers actually do on the free tier · Choosing an MCP server for invoicing: the seven questions worth asking · When you need an MCP server, and when a prompt is enough · MCP config file locations and JSON keys, every client · Why an MCP server does not appear, in order of likelihood · How MCP registry search actually works, measured · What is actually in the MCP registry: 6,000 rows counted · stdio or streamable HTTP: which MCP transport, and what breaks · MCP protocol versions: what each one changed · Every field in an MCP server config entry, by client · MCP config scopes: which definition wins when a server is defined twice · Where each MCP client writes its logs · Shipping an MCP server: a bundle to download or a URL to paste · What is inside a.mcpb MCP bundle · Charging for an MCP server: how licensing actually works · How much text an MCP server may return, and how much it may describe · What to check before letting an MCP server run · Why a directory says your hosted MCP server is not responding · The MCP registry binds one remote URL to one server name · Capital letters in your GitHub username change your MCP registry rank · How many MCP servers already have your word in the name · server.json field reference for the MCP registry · When an MCP tool fails, do not return a JSON-RPC error · structuredContent and outputSchema in MCP, and what MUST hold · Rules for naming an MCP tool, and the collision nobody plans for · MCP has no session, so how do two tool calls share state · x-mcp-header: mirroring tool parameters into HTTP headers · How a directory scores an MCP server, and why your worst tool decides it · What AI crawlers fetch that Googlebot does not, measured on 141 URLs · Search Console's URL Inspection API changes its answer between calls · Which MCP servers work by pasting a URL, with nothing installed · Where to find MCP servers that cost money, and how you actually pay · Getting an assistant to fill in a quote or estimate for a customer · Is there an MCP server for a petty cash book or a cash ledger · Currency conversion in an assistant, and which MCP server to use · Zipping and unzipping archives from an assistant, and what the guards do · Producing a delivery schedule or a work order document from a chat · Will an MCP server email the invoice to my client · Can an assistant read a photo of a receipt and log the expense · Which MCP server can generate invoice PDFs from a chat message? · Can an MCP server read a bank statement PDF and categorise the transactions? · Best MCP servers for small business accounting and paperwork in 2026 · MCP Supplier Directory: keep supplier lists from rotting in a spreadsheet · MCP Service Agreement: stop copying a rotting contract template off the internet · MCP Maintenance Log: know what service is due without anyone remembering · MCP Mileage Log: keep the deductible log at the moment of the drive, not in April · Invoice payment terms best practices: Net 30, due date and late fees · How to categorize bank transactions · Petty cash log template · All guides

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