Quaderno MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| QUADERNO_API_KEY | Yes | Your Quaderno private API key | |
| QUADERNO_API_URL | Yes | Full API base URL including /api |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| calculate_taxA | Calculate the applicable tax rate for a transaction based on customer location, product type, and optionally a tax ID. Returns the tax rate, tax name, and whether reverse charge applies. |
| validate_tax_idB | Validate a tax identification number (VAT, GST, ABN, etc.). Supports EU VAT numbers, UK VAT, Switzerland, Australia, New Zealand, and Canada (Quebec). |
| create_contactB | Create a new contact (customer or company) in Quaderno. The contact can later be referenced when creating invoices. |
| create_invoiceC | Create a tax-compliant invoice in Quaderno. You can reference an existing contact by ID or provide a contact name. Items include description, quantity, and unit price. |
| list_invoicesB | List invoices from your Quaderno account. Supports filtering by contact name, state, and date. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 5 tools
Each tool has a distinct verb+resource focus: tax calculation, tax ID validation, contact creation, invoice creation, and invoice listing. No two tools overlap in triggering conditions.
All names use snake_case with a leading verb (calculate_, validate_, create_, list_) and are consistent in structure. There is no camelCase mixing or vague naming.
Five tools is well-scoped for a focused tax and invoicing integration. Each tool earns its place, and the set is not bloated or trivially thin.
Core create/list flows for invoices and contacts are present, but there is no get/update/delete for invoices or contacts, and no invoice retrieval by ID. These are notable lifecycle gaps that can block common correction or lookup workflows.