Credit notes and purchase orders written against the invoices the invoice server already holds, with the VAT unwound at the rate you charged. It credits an invoice in full, by a gross amount or by named lines and quantities, storing every money field negative in minor units so a period's documents sum to the net of what was billed, and it refuses to give back more than the invoice's remaining creditable amount. It also raises purchase orders to suppliers with line items, VAT, currency and an expected delivery date, receives them in full or in part, and reports credited and on-order totals per currency alongside deliveries past their date.
credit_note_list, credit_note_get, purchase_order_list, purchase_order_get and billing_docs_report are reads and safe to auto-approve; keep credit_note_create, purchase_order_create and purchase_order_receive behind a click, since each writes a numbered document that spends one of the month's five free ones and burns an id that is never reused.
| You say | Tool |
|---|---|
| Credit invoice INV-2026-0001 in full, the client sent the work back. | credit_note_create |
| Raise a purchase order to Nordic Print for 500 brochures at 1.20 each, due the 20th. | purchase_order_create |
| Which purchase orders are past their delivery date? | billing_docs_report |
Crediting ten percent of a mixed-VAT invoice at a single rate and splitting it across the invoice's own rates give the same gross, EUR 177.00, and VAT lines that differ by EUR 6.10, 22.6 percent. The client's document and the payment are identical either way, so nothing downstream ever surfaces the error; only the VAT return does. The split is done at the point the document is written.
The file is mcp.json, and the key inside it is mcpServers.
| Scope | Path |
|---|---|
| Cline CLI | ~/.cline/mcp.json |
| The editor extension | opened from the Cline panel, not by path; the documentation deliberately calls it the MCP settings JSON used by the extension |
If you also run Claude Desktop, the shortest path there is one click: billing-docs.mcpb
from the bundle catalog opens as an extension, with no JSON and no terminal.
Cline reads its own config, so here it is:
The config block:
{
"mcpServers": {
"billing-docs": {
"command": "node",
"args": ["/absolute/path/to/mcp-servers/servers/billing-docs/dist/index.js"],
"disabled": false,
"autoApprove": []
}
}
}The node command above wants a built file. From a clone, once:
git clone https://github.com/theluckystrike/mcp-servers.git
cd mcp-servers && npm install
npm run build -w packages/mcp-license -w servers/billing-docsThat writes servers/billing-docs/dist/index.js, and its absolute path is the one argument
the config needs.
The npm packages are not published yet, so the form below returns a 404 today. It is here because it is what the entry becomes the day the publish lands, with nothing else changed:
{
"mcpServers": {
"billing-docs": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-billing-docs"]
}
}
}No full-app restart. The MCP settings actions include restarting an unresponsive server if its tools do not appear.
Nothing is published to npm yet, so the working install paths are the ones above: the .mcpb bundle from the bundle catalog, a clone and build, or the hosted URL.
The same server runs at https://mcp.zovo.one/mcp/billing-docs over MCP streamable HTTP, no install. Mint a free token with curl https://mcp.zovo.one/mcp/token, or use a Pro key. It has no filesystem, so a file comes back as a one-hour download link.
Write the transport in. Omitting type falls back to the legacy sse transport, which will not talk to this endpoint:
{
"mcpServers": {
"billing-docs": {
"type": "streamableHttp",
"url": "https://mcp.zovo.one/mcp/billing-docs",
"headers": { "Authorization": "Bearer <token>" }
}
}
}Cline is the one client here with an unsafe transport default. `type` selects it, and omitting `type` falls back to the legacy sse transport, so a streamable HTTP endpoint needs it written in or you will debug a server that is fine. Local entries carry "disabled" and an "autoApprove" array.
Free: 5 documents a calendar month, credit notes and purchase orders together, counted by issue date. Both text exports are never metered, and full, partial and per-line credit notes, VAT, multiple currencies and receiving orders are all on the free tier. Pro is $19 once, verified offline.
The CLI reads ~/.cline/mcp.json. For the extension, do not hunt for a path: MCP Servers icon, Configure tab, Configure MCP Servers. cline mcp opens a wizard, and cline config mcp --json is the non-interactive form.
Set the transport explicitly. Omitting type falls back to the legacy sse transport, so streamable HTTP needs "type": "streamableHttp" written in.
Approve the read-only ones and leave the writing ones behind a click: each entry carries an autoApprove array and a disabled flag.
MCP Billing Docs in detail · The same server in Windsurf and Claude.ai and Claude Desktop connectors · Every server in Cline · Guides · Cline docs · Buy Pro
Credit notes and purchase orders from chat, against your real invoices · Fixed assets and depreciation from chat, on the rates the tax authorities publish