Quaderno MCP Server

Use natural language to calculate tax, validate tax IDs, and create invoices.

Source

third_party_registry

Updated

2026-08-21

// securityCaution

Runs locally
Open source

Running security audit…

Credentials
Network egress
Code execution
Data access
Supply chain

// install

Copy the install command and let the AI configure it · recommended for beginners

No copy-paste install info for "Quaderno MCP Server" yet — see the docs or source repo.

// examples

Calculate tax for a cross-border order

Prompt

Calculate the tax for this order: item amount EUR 120, customer located in Germany, seller based in Spain, product type is digital service. Return the applicable tax rate, tax amount, and total including tax.

Expected

Returns the applicable tax type and rate, plus the tax amount and final total.

Validate a customer tax ID

Prompt

Please validate this customer VAT ID: DE123456789, and tell me whether the result is suitable for invoicing.

Expected

Returns the tax ID validity result and whether it passes compliance checks for invoicing.

Create a compliant invoice

Prompt

Create an invoice for this transaction: customer name Alice GmbH, country Germany, product SaaS subscription, pre-tax amount EUR 99, currency EUR. Generate the invoice with tax details included.

Expected

Generates a compliant invoice record including customer details, tax amount, total, and tax breakdown.