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One price list and one labour rate card, kept where the invoice and the quote can both read them, with the price on a date worked out on the call. You give a product a code, a name, a unit, an optional VAT rate and a price in minor units with the day that price comes into force, and you give a role an hourly rate the same way. Then you hand the catalogue a list of what a customer had, and it hands back the line items already priced. A SKU holds its price ROWS rather than a current price, and the price on a date is the latest valid-from at or before it, worked out on the call, so putting a price up in July does not rewrite what June was quoted at, and sku_get names the row it picked, how many rows it considered and any later row already booked, which turns a question about a figure on an old invoice into one line of one file rather than an argument. A date before every row has no price and that is a refusal naming the earliest row and the day it starts, because filling it with the earliest row reprices history: a job done in December 2024 would be billed at the January 2025 price and would reconcile perfectly against a price list that did not exist yet. One row per currency, tier and valid-from date, and setting that key again REPLACES the row and says what it was and what it became, because two rows on one key make the price that day a coin toss decided by array order. Nothing is invented: no fallback, no profile default rate, no nearest match. An unknown code, or a code with no price in the currency and tier you asked for, is refused by name, because the invented number would be printed on a document a customer pays from. It creates no invoice and no quote of its own: lines_resolve returns the arguments and says posted false, and you run invoice_create in the invoice server or quote_create in the quotes server.
The price list you are replacing is usually already in this window, pasted out of a spreadsheet or photographed off a printed sheet, so reading a code, a unit and a price out of it and into sku_set is one sentence, and the question that follows, what does that come to for this customer, is the next one. Nothing leaves the machine: the server makes no network call on any tool, so what you charge and who you charge it to stays on the laptop it was typed on.
| You say | Tool |
|---|---|
| Add WEB-AUDIT, a fixed price site audit, 45,000 minor units from 2026-01-01, VAT 23 percent. | sku_set |
| What was WEB-AUDIT priced at on 2026-03-15, and is there a later price already booked? | sku_get |
| Senior developer 8,500 an hour and junior 4,500 from 2026-01-01. Then price three audits, twelve months of HOST-MO, seven and a half senior hours and three and a quarter junior hours as of 2026-03-15. | lines_resolve |
The two servers this catalogue feeds take the same price in different scales, and the gap is exactly 100x. invoice_create's item carries unit_price in MAJOR units, 90 for 90 EUR. quote_create's item carries unit_price_minor in MINOR units, 9000 for 90.00 EUR. Both fields are plain numbers, both are called the unit price, and neither tool can tell that the number it was handed was scaled for the other one: 45000 passed as unit_price is a perfectly valid invoice line for EUR 45,000.00, and it reconciles against itself. The unit suite measures the gap on the worked resolution: the correct payload nets 261,363 minor units, and the quote payload's field fed into the invoice engine nets 26,136,300, asserted as exactly 100x, and 1000x in a 3-decimal currency such as KWD. So the store holds MINOR units, which is the only lossless form, and lines_resolve builds BOTH payloads itself in one call with the scale printed against each. A catalogue that returned the price and let the caller choose the field would be wrong half the time, and wrong by two orders of magnitude when it was.
The file is claude_desktop_config.json, and the key inside it is mcpServers.
| Scope | Path |
|---|---|
| macOS | ~/Library/Application Support/Claude/claude_desktop_config.json |
| Windows | %APPDATA%\Claude\claude_desktop_config.json |
One click, with no JSON. Download catalogue.mcpb from the
bundle catalog and open it. Claude Desktop installs it as an extension and runs
it on the Node runtime it ships with, so neither your PATH nor your node version comes into it, and there
is no file to edit. Everything below is the manual route, for when you want the entry in the config file
itself.
The config block, which needs both strings absolute:
{
"mcpServers": {
"catalogue": {
"command": "node",
"args": ["/absolute/path/to/mcp-servers/servers/catalogue/dist/index.js"]
}
}
}If node came from nvm, asdf or homebrew, use the absolute path that which node prints
rather than the bare word, because a stdio server started by this app inherits a limited PATH:
"command": "/Users/you/.nvm/versions/node/v22.14.0/bin/node"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/catalogueThat writes servers/catalogue/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": {
"catalogue": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-catalogue"]
}
}
}Save, then completely quit Claude Desktop and start it again. A window reload is not enough.
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/catalogue 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.
{
"mcpServers": {
"catalogue": {
"url": "https://mcp.zovo.one/mcp/catalogue",
"headers": { "Authorization": "Bearer <token>" }
}
}
}Two documented facts decide whether the entry works: every path in claude_desktop_config.json must be absolute, and a stdio server started here inherits only a limited, platform-dependent subset of environment variables. If node came from nvm or homebrew, paste what `which node` prints instead of the bare word. The .mcpb route avoids both: Claude Desktop ships a built-in Node.js environment.
Free: 25 SKUs, the one standard price tier, unlimited rate cards, and every text answer including lines_resolve and price_list_text. A price list nobody can read is not a price list, and withholding lines_resolve would withhold the one thing the sibling servers came here for. sku_delete is free on every tier, and the resolution register is what makes that safe: every resolution updates one row per SKU and role it priced, so the register is bounded by the size of the catalogue rather than by traffic, and a code that has priced a line or that a rate card points at is refused by name with the times it was used and the last resolution id, because a code printed on a document somebody sent is a fact about that document. A byte-identical duplicate is refused before the free cap is even consulted, so a product filed twice names the code already stored rather than being met with an upgrade prompt, and burns neither a slot nor a place in the list. Pro is $19 once, verified offline.
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json. Windows: %APPDATA%\Claude\claude_desktop_config.json. There is no published Linux path. Settings, Developer, Edit Config opens the right copy and creates it if it does not exist.
In order: did you fully quit and restart, not just close the window? Is every path absolute? And is the command resolvable, given the limited environment a stdio server inherits here? If node came from nvm, paste what which node prints.
Yes. An .mcpb bundle, the format renamed from .dxt, opens with Claude and shows an installation dialog. One you built yourself goes in through Settings, Extensions, Advanced settings, Install Extension.
MCP Catalogue in detail · The same server in Claude.ai and Claude Desktop connectors and Claude Code · Every server in Claude Desktop · Guides · Claude Desktop docs · Buy Pro
Price lists and rate cards from chat, and the 100x scale gap between the invoice and the quote · MCP Supplier Directory: keep supplier lists from rotting in a spreadsheet