App

Quaderno integrations

Connect Quaderno to any other app, or use it from your AI client over MCP. Quaderno is a tax software that handles sales tax, VAT, and GST for your online business. Automatically calculates tax, sends receipts and invoices, and provides instant multi-channel tax reports for your sales around the world.

Connects with an API keyquaderno.io

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

Build solutions, not workarounds.

What do you want to automate with Quaderno?

Ask the assistant

You'll sign in before anything runs. What you typed comes with you.

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client
Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide (opens in a new tab)
Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide (opens in a new tab)
Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide (opens in a new tab)
Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide (opens in a new tab)
Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide (opens in a new tab)
Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide (opens in a new tab)

Pair it

Connect Quaderno with another app

What your agent can do with Quaderno

Triggers and actions 3 triggers · 24 actions

  • Trigger
    New Contact

    Triggers when a new contact is created in Quaderno.

  • Trigger
    New Invoice

    Triggers when a new invoice is created in Quaderno.

  • Trigger
    New Sale

    Triggers when a new sale is recorded in Quaderno, i.e. a new invoice or receipt is created.

  • Action
    Add invoice payment

    Records a payment against a Quaderno invoice. When total payments reach the invoice amount, the invoice is marked as paid.

  • Action
    Add product

    Creates a new product in Quaderno that can be used as a line item on invoices, credit notes and expenses.

  • Action
    Add receipt

    Creates a paid receipt in Quaderno for a completed sale, with its customer, line items and payment method.

  • Action
    Calculate tax rate

    Calculates the tax rate and tax amount that applies to a sale for a given customer location and product type.

  • Action
    Create Contact

    Creates a new contact (customer or vendor) in Quaderno and returns the created contact.

  • Action
    Create Estimate

    Creates an estimate (proforma) in Quaderno for a customer, with line items, dates and notes.

  • Action
    Create Expense

    Creates an expense in Quaderno for a vendor, with its line items, and returns the new expense.

  • Action
    Create Invoice

    Creates an invoice for a customer with line items; optionally records full payment so the invoice is marked paid.

  • Action
    Create Paid Invoice

    Creates an invoice for a customer and records a full payment against it, so the invoice is marked paid.

  • Action
    Create Sale

    Records a sale in Quaderno, which calculates taxes and issues the matching invoice or receipt for the customer.

  • Action
    Delete contact

    Permanently deletes a contact (customer or vendor) from your Quaderno account.

  • Action
    Find Contact

    Finds contacts whose name, email or tax ID matches the search text, or whose payment-processor ID matches.

  • Action
    Find Sale

    Finds sales (invoices) by invoice number, customer name or PO number, payment processor transaction id, customer, state or issue date range, and returns the matches.

  • Action
    Get contact

    Returns a single Quaderno contact (customer or vendor) by its ID.

  • Action
    Get Estimate

    Returns a single estimate (proforma) by its id, including its number, customer, line items, taxes and totals.

  • Action
    Get Expense

    Returns the details of an existing expense in your Quaderno account.

  • Action
    Get invoice

    Returns a single invoice by its id, including number, contact, line items, taxes, totals and payments.

  • Action
    Get product

    Returns a single product (item) from your Quaderno account by its id, including its name, code, price and tax settings.

  • Action
    Get Receipt

    Returns a receipt by its id, including number, totals, taxes, contact and payment details.

  • Action
    Update contact

    Updates an existing Quaderno contact. Fields left blank keep their current values.

  • Action
    Update invoice

    Updates the editable fields of an existing invoice: PO number, tags, payment details, notes, custom metadata and billing address.

  • Action
    Update product

    Updates an existing product in Quaderno. Only the fields you fill in are changed.

  • Action
    Validate tax ID

    Checks whether a customer's tax ID (EU/UK VAT, ABN, NZBN, QST, Swiss UID) is valid and belongs to a real business.

  • Action
    Void invoice

    Voids an existing invoice in Quaderno and returns the voided invoice.

Reviews

What our customers say

Questions

Quaderno, answered

Is there a Quaderno MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with Quaderno. Add that address to any AI client that takes a remote MCP server, sign in once in your browser, and your client can build, test and run automations that use Quaderno. Nothing to install.

What can start an automation from Quaderno?

Any of Quaderno's 3 triggers in the catalog, including New Contact, New Invoice and New Sale. Describe the moment in plain language and your agent picks the right one.

What can your agent do in Quaderno?

Any of Quaderno's 24 actions, including Create Contact, Create Estimate, Create Expense and Create Invoice. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can Quaderno connect to?

Any app in the catalog; the list on this page pairs Quaderno with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.