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Retainers and subscriptions billed on a schedule you set once. It stores a billing schedule per client, weekly, monthly, quarterly, yearly or every N days, shows what falls due, and generates exactly one invoice per schedule per period into the invoice server's own store with its number series and its A4 PDF.
This is a monthly ritual rather than a daily one, and Claude Desktop is where people do monthly rituals. Ask for the dry run first, read the four lines it would create, then say run it.
| You say | Tool |
|---|---|
| Bill Acme 12 hours at 90 EUR every month from the 1st, 14 day terms. | schedule_create |
| Show me what this month's billing run would create before you create it. | invoice_generate_due with dry_run |
| What is due in the next 30 days? | schedule_upcoming |
The worked run created 4 invoices totalling EUR 4,320.00 and, repeated five minutes later, created 0 and skipped 4. The key is the period, not the calendar day, so a billing run you forgot you already did is a no-op rather than four duplicate invoices.
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 recurring.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": {
"recurring": {
"command": "node",
"args": ["/absolute/path/to/mcp-servers/servers/recurring/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/recurring
That writes servers/recurring/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": {
"recurring": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-recurring"]
}
}
}
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/recurring 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": {
"recurring": {
"url": "https://mcp.zovo.one/mcp/recurring",
"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: 3 active schedules, unlimited generation, a 30 day upcoming view and a 3 month forecast. 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 Recurring Invoices 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
Bill a retainer on a schedule without a billing SaaS · Create an invoice PDF from a chat message with an MCP server