RMCP.DEV
← usefulapi.io

INDIVIDUAL MCP TOOL

create_invoice

MUTATES Quaderno data — create an invoice for a contact.

usefulapi.ionone authenticationAvailability not checked

LIVE ENDPOINT

https://quaderno.usefulapi.io/mcp

No auth detected

Connect to this endpoint to inspect the live schema for create_invoice and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Potential side effects detected · medium confidence · heuristic, not a guarantee.

  • A tool name or description contains a write-action term.
  • A tool name or description suggests a financial action.

Parent server

usefulapi.io

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.quaderno-mcp]
url = "https://quaderno.usefulapi.io/mcp"
enabled = true
Claude Code

.mcp.json

{
  "mcpServers": {
    "quaderno-mcp": {
      "type": "http",
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}
Claude Desktop

Settings → Connectors → Add custom connector

Name: quaderno-mcp
Remote MCP URL: https://quaderno.usefulapi.io/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "quaderno-mcp": {
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}
Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code 
{
  "servers": {
    "quaderno-mcp": {
      "type": "http",
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}
Generic MCP

Client-specific MCP configuration

{
  "name": "quaderno-mcp",
  "transport": "streamable-http",
  "url": "https://quaderno.usefulapi.io/mcp"
}
MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

Related tools

  • ping — Verify the API key and connection by pinging Quaderno.
  • calculate_tax — Calculate the correct tax rate/amount for a sale given the customer's location and product.
  • list_invoices — List invoices, newest first, with optional filters.
  • get_invoice — Fetch a single invoice by id (full object incl.
  • list_contacts — List contacts (customers/vendors), newest first.
  • get_contact — Fetch a single contact by id.
  • list_items — List products/items in the catalog, newest first.
  • get_item — Fetch a single product/item by id.