Quaderno MCP by usefulapi

Last 30 days

Uptime

100%

Response time

268 ms typical, 268 ms slowest 5%

Last check

2 h ago

Next check

in 4 h

How to call it

Add it to any MCP client that supports remote servers.

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

23 tools

• ping

  Verify the API key and connection by pinging Quaderno. Returns account/authentication status. Quaderno API: GET /ping.

• calculate_tax

  Calculate the correct tax rate/amount for a sale given the customer's location and product. This is Quaderno's flagship endpoint — it applies the right VAT / GST / US sales-tax rules per jurisdiction. READ-ONLY (no record is created). Quaderno API: GET /tax_rates/calculate. Retur

• list_invoices

  List invoices, newest first, with optional filters. Quaderno API: GET /invoices. Returns invoice objects (id, number, issue_date, due_date, currency, contact, items, taxes, payments, state, total_cents, subtotal_cents), wrapped as { data, pagination } when more pages exist.

• get_invoice

  Fetch a single invoice by id (full object incl. items, taxes, payments, permalink, pdf). Quaderno API: GET /invoices/{id}.

• list_contacts

  List contacts (customers/vendors), newest first. Quaderno API: GET /contacts. Returns contact objects (id, kind, first_name, last_name, contact_name, email, country, tax_id, tax_status, …), wrapped as { data, pagination } when more pages exist.

• get_contact

  Fetch a single contact by id. Quaderno API: GET /contacts/{id}.

• list_items

  List products/items in the catalog, newest first. Quaderno API: GET /items. Returns item objects (id, code, name, kind, product_type, unit_cost, tax_class, tax_type, currency, stock, …), wrapped as { data, pagination } when more pages exist.

• get_item

  Fetch a single product/item by id. Quaderno API: GET /items/{id}.

• list_credit_notes

  List credit notes (refund documents), newest first. Quaderno API: GET /credit_notes. Wrapped as { data, pagination } when more pages exist.

• get_credit_note

  Fetch a single credit note by id. Quaderno API: GET /credit_notes/{id}.

• list_receipts

  List receipts, newest first. Quaderno API: GET /receipts. Wrapped as { data, pagination } when more pages exist.

• get_receipt

  Fetch a single receipt by id. Quaderno API: GET /receipts/{id}.

• list_expenses

  List expenses (bills you received), newest first. Quaderno API: GET /expenses. Wrapped as { data, pagination } when more pages exist.

• get_expense

  Fetch a single expense by id. Quaderno API: GET /expenses/{id}.

• list_tax_codes

  List the product tax codes Quaderno supports (id, name, description) — used as the tax_code on products / tax calculations. Quaderno API: GET /tax_codes.

• list_jurisdictions

  List the tax jurisdictions (id, name, country, region) where the account is registered to collect tax. Quaderno API: GET /jurisdictions.

• list_webhooks

  List the account's configured webhooks (id, url, events). Quaderno API: GET /webhooks.

• quaderno_request

  Power-user escape hatch: GET any Quaderno API path not wrapped by a dedicated tool. READ-ONLY — only GET is allowed. Path is taken after /api (e.g. "/tax_ids", "/evidence"). Quaderno API: GET {path}.

• create_contact

  MUTATES Quaderno data — create a contact (customer or vendor). Provide kind plus a name; use `fields` for any other Quaderno contact attribute (phone_1, region, postal_code, city, street_line_1/2, tax_status, language, discount, notes, processor/processor_id). Quaderno API: POST

• update_contact

  MUTATES Quaderno data — update an existing contact. Only the fields you pass are changed; use `fields` for any attribute not typed here. Quaderno API: PUT /contacts/{id}. Returns the updated contact.

• create_item

  MUTATES Quaderno data — create a product/item in the catalog. Provide name + unit_cost; use `fields` for any other attribute (code, description, tax_class, tax_type, currency, country, stock). Quaderno API: POST /items. Returns the created item.

• create_invoice

  MUTATES Quaderno data — create an invoice for a contact. Provide contact_id (or a contact via `fields`) and items; use `fields` for any other attribute (currency, issue_date, due_date, po_number, notes, tag_list, custom_metadata, payment_details). Each item = { description, quant

• create_transaction

  MUTATES Quaderno data — record a sale or refund transaction (Quaderno computes tax and produces the compliant document). Provide the customer, items, and payment. Use `fields` for any other attribute (date, currency, shipping_address, evidence, processor, processor_id, processor_

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