Integration

Fortnox integration

Fortnox is a Swedish accounting, invoicing and business administration platform. Manage customers, articles, customer invoices (create, update, bookkeep, credit, cancel, send by email or e-invoice, print to PDF) and their payments, orders, offers and contracts, suppliers, supplier invoices and their payments and approvals, vouchers, projects and cost centers, and read accounts, financial years, company information and settings lists. The warehouse, assets, salary and time reporting, archive and file connections, Fortnox Finans, bank process and the v2 bundle-article variants are not exposed. Authentication is OAuth2 through a Fortnox integration; each scope needs the matching Fortnox licence.

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When this happens, do that in Fortnox.Built from the 112 Fortnox tools below, on the connection you add once.

What you can do with Fortnox

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Article, 5 operations

create_articleCreate articlePOSTCreates an article: Description is required; article number, unit, sales and purchase price, VAT, accounts, stock settings and more are optional.
delete_articleDelete articleDELETEDeletes an article permanently.
get_articleGet articleGETReturns one article by article number: description, prices, unit, VAT, accounts and stock quantities.
list_articlesList articlesGETLists articles (products and services), sorted by article number, searchable by number, description, EAN, supplier or manufacturer, with paging.
update_articleUpdate articlePUTUpdates an article: only the properties sent change. The article number itself cannot be changed.

Customer, 5 operations

create_customerCreate customerPOSTCreates a customer: Name is required; address, email, phone, organisation and VAT numbers, terms of payment, currency and more are optional.
delete_customerDelete customerDELETEDeletes a customer permanently.
get_customerGet customerGETReturns one customer by customer number: address, contact details, organisation and VAT numbers, terms, currency and default settings.
list_customersList customersGETLists customers, sorted by customer number, with search fields (name, email, city, organisation number...), a filter (active or inactive) and paging.
update_customerUpdate customerPUTUpdates a customer: only the properties sent change.

Invoicepayment, 5 operations

create_invoice_paymentCreate invoice paymentPOSTRegisters a payment on a customer invoice: InvoiceNumber is required, with amount, payment date and mode of payment.
delete_invoice_paymentDelete invoice paymentDELETERemoves a customer invoice payment.
get_invoice_paymentGet invoice paymentGETReturns one customer invoice payment: invoice, amount, currency, payment date, mode of payment and booking status.
list_invoice_paymentsList invoice paymentsGETLists payments registered against customer invoices, with paging.
update_invoice_paymentUpdate invoice paymentPUTUpdates an unbooked customer invoice payment.

Project, 5 operations

create_projectCreate projectPOSTCreates a project: Description is required; project number, status, start and end dates, leader and contact person are optional.
delete_projectDelete projectDELETERemoves a project by its project number.
get_projectGet projectGETReturns one project with its description, status, dates, project leader and contact person.
list_projectsList projectsGETLists projects (number, description, status, start and end date, project leader, contact person), searchable by description and leader.
update_projectUpdate projectPUTUpdates a project: only the properties sent change.

Supplierinvoicepayment, 5 operations

create_supplier_invoice_paymentCreate supplier invoice paymentPOSTRegisters a payment of a supplier invoice: InvoiceNumber is required, with amount, payment date and mode of payment.
delete_supplier_invoice_paymentDelete supplier invoice paymentDELETERemoves a supplier invoice payment.
get_supplier_invoice_paymentGet supplier invoice paymentGETReturns one supplier invoice payment: invoice, amount, currency, payment date and booking status.
list_supplier_invoice_paymentsList supplier invoice paymentsGETLists payments of supplier invoices, with paging.
update_supplier_invoice_paymentUpdate supplier invoice paymentPUTUpdates an unbooked supplier invoice payment.

Bookkeep, 4 operations

bookkeep_invoiceBookkeep invoicePUTBookkeeps a customer invoice (it is then booked and can no longer be edited).
bookkeep_invoice_paymentBookkeep invoice paymentPUTBookkeeps a customer invoice payment.
bookkeep_supplier_invoiceBookkeep supplier invoicePUTBookkeeps a supplier invoice.
bookkeep_supplier_invoice_paymentBookkeep supplier invoice paymentPUTBookkeeps a supplier invoice payment.

Cancel, 4 operations

cancel_invoiceCancel invoicePUTCancels a customer invoice.
cancel_offerCancel offerPUTCancels an offer (quote) and returns it with Cancelled set.
cancel_orderCancel orderPUTCancels an order and returns it with Cancelled set.
cancel_supplier_invoiceCancel supplier invoicePUTCancels a supplier invoice.

Contract, 4 operations

create_contractCreate contractPOSTCreates a contract for CustomerNumber with its invoice rows and PeriodEnd (required), invoice interval, period start and more.
get_contractGet contractGETReturns one contract with its invoice rows, customer, period, invoice interval and status.
list_contractsList contractsGETLists contracts (recurring invoicing agreements) with search fields, a filter and paging.
update_contractUpdate contractPUTUpdates a contract. Without RowId the rows sent replace all rows in order, so send every row that should remain.

Costcenter, 4 operations

create_cost_centerCreate cost centerPOSTCreates a cost center: Code and Description are required.
get_cost_centerGet cost centerGETReturns one cost center by code.
list_cost_centersList cost centersGETLists the cost centers (code, description, active flag).
update_cost_centerUpdate cost centerPUTUpdates a cost center's description, note or active flag.

Invoice, 4 operations

create_invoiceCreate invoicePOSTCreates a customer invoice for CustomerNumber with its rows (article, quantity, price...). Omitted values come from the account's predefined values.
get_invoiceGet invoiceGETReturns one customer invoice with its rows, customer, dates, totals, VAT, balance and booking and sending status.
list_invoicesList invoicesGETLists customer invoices with search fields (customer, document number, OCR, dates, project...), a status filter (unpaid, unpaidoverdue, fullypaid...) and paging.
update_invoiceUpdate invoicePUTUpdates an unbooked invoice. Without RowId the rows sent replace all rows in order, so send every row that should remain.

Offer, 4 operations

create_offerCreate offerPOSTCreates an offer (quote) for CustomerNumber with its rows (article, quantity, price...).
get_offerGet offerGETReturns one offer (quote) with its rows, customer, dates, expiry date and totals.
list_offersList offersGETLists offers (quotes) with search fields, a status filter (cancelled, expired, completed, notcompleted, ordercreated, ordernotcreated) and paging.
update_offerUpdate offerPUTUpdates an offer. Without RowId the rows sent replace all rows in order, so send every row that should remain.

Order, 4 operations

create_orderCreate orderPOSTCreates an order for CustomerNumber with its rows (article, ordered and delivered quantity, price...).
get_orderGet orderGETReturns one order with its rows, customer, dates, totals and status.
list_ordersList ordersGETLists orders with search fields (customer, document number, dates, project...), a status filter (cancelled, expired, invoicecreated, invoicenotcreated) and paging.
update_orderUpdate orderPUTUpdates an order. Without RowId the rows sent replace all rows in order, so send every row that should remain.

Supplier, 4 operations

create_supplierCreate supplierPOSTCreates a supplier: Name is required; address, contact details, bank details (bankgiro, plusgiro, IBAN) and terms are optional.
get_supplierGet supplierGETReturns one supplier: address, contact details, organisation and VAT numbers, bank details and terms.
list_suppliersList suppliersGETLists suppliers with search fields (supplier number, name, city, email, phone, organisation number) and paging.
update_supplierUpdate supplierPUTUpdates a supplier: only the properties sent change.

Supplierinvoice, 4 operations

create_supplier_invoiceCreate supplier invoicePOSTCreates a supplier invoice for SupplierNumber with its rows (account, debit, credit...), dates, OCR, total and VAT.
get_supplier_invoiceGet supplier invoiceGETReturns one supplier invoice with its rows, supplier, dates, OCR, total, VAT, balance and booking status.
list_supplier_invoicesList supplier invoicesGETLists supplier invoices with search fields, a status filter (unpaid, unpaidoverdue, unbooked, pendingpayment...) and paging.
update_supplier_invoiceUpdate supplier invoicePUTUpdates an unbooked supplier invoice.

Createinvoice, 3 operations

create_invoice_from_contractCreate invoice from contractPUTCreates an invoice from the contract.
create_invoice_from_offerCreate invoice from offerPUTCreates a customer invoice directly from the offer and returns the offer.
create_invoice_from_orderCreate invoice from orderPUTCreates a customer invoice from the order and returns the order.

Email, 3 operations

email_invoiceEmail invoiceGETSends the invoice to the customer by email, using the invoice's EmailInformation for address, subject and body, and returns the invoice.
email_offerEmail offerGETSends the offer to the customer by email, using its EmailInformation, and returns the offer.
email_orderEmail orderGETSends the order to the customer by email, using its EmailInformation, and returns the order.

Externalprint, 3 operations

mark_invoice_sentMark invoice sentPUTMarks the invoice as sent without generating or sending it, for an invoice delivered outside Fortnox.
mark_offer_sentMark offer sentPUTMarks the offer as sent without generating or sending it.
mark_order_sentMark order sentPUTMarks the order as sent without generating or sending it.

Print, 3 operations

print_invoicePrint invoiceGETReturns the invoice as a PDF file and marks it as sent.
print_offerPrint offerGETReturns the offer as a PDF file.
print_orderPrint orderGETReturns the order as a PDF file.

Voucher, 3 operations

create_voucherCreate voucherPOSTCreates a voucher (journal entry): Description, TransactionDate, VoucherSeries and Year are required, with balanced VoucherRows (account, debit, credit).
get_voucherGet voucherGETReturns one voucher with its rows; financialyear or financialyeardate selects the year it belongs to.
list_vouchersList vouchersGETLists vouchers (journal entries). A voucher is identified by series, number and financial year; financialyear or financialyeardate picks the year.

Account, 2 operations

get_accountGet accountGETReturns one account by number: description, active flag, VAT code, balances and settings.
list_accountsList accountsGETLists the accounts of the chart of accounts, sorted by account number; financialyear or financialyeardate picks the year.

Commentlog, 2 operations

add_supplier_invoice_commentAdd supplier invoice commentPOSTAdds a comment to a supplier invoice.
list_supplier_invoice_commentsList supplier invoice commentsGETLists the comments on a supplier invoice.

Credit, 2 operations

credit_invoiceCredit invoicePUTCreates a credit invoice for a customer invoice; the credit invoice number is returned in CreditInvoiceReference.
credit_supplier_invoiceCredit supplier invoicePUTCredits a supplier invoice; the created credit invoice is referenced in CreditReference.

Currency, 2 operations

get_currencyGet currencyGETReturns one currency by code (for example EUR) with its buy and sell rates, unit and rate date.
list_currenciesList currenciesGETLists the currencies set up in the account with their exchange rates.

Financialyear, 2 operations

get_financial_yearGet financial yearGETReturns one financial year by id: from and to date, account chart type and accounting method.
list_financial_yearsList financial yearsGETLists the financial years (id, from and to date, account chart type, accounting method); Date returns the year that contains that date.

Price, 2 operations

get_article_priceGet article priceGETReturns the first price of an article in a price list.
update_article_priceUpdate article pricePUTUpdates the first price of an article in a price list.

Pricelist, 2 operations

get_price_listGet price listGETReturns one price list by code.
list_price_listsList price listsGETLists the price lists (code, description, comments, pre-selected flag).

Sublist, 2 operations

list_article_pricesList article pricesGETLists the prices of an article in a price list, one per from-quantity.
list_vouchers_in_seriesList vouchers in seriesGETLists the vouchers of one voucher series, for the financial year chosen with financialyear or financialyeardate.

Accountchart, 1 operation

list_account_chartsList account chartsGETLists the account charts (standard charts of accounts) available.

Approvalbookkeep, 1 operation

approve_supplier_invoice_bookkeepingApprove supplier invoice bookkeepingPUTApproves a supplier invoice for bookkeeping.

Approvalpayment, 1 operation

approve_supplier_invoice_paymentApprove supplier invoice paymentPUTApproves a supplier invoice for payment.

Company, 1 operation

get_company_settingsGet company settingsGETReturns the company settings: name, addresses, organisation and VAT numbers, bankgiro, plusgiro, IBAN and BIC, contact person, email and phone.

Companyinformation, 1 operation

get_company_informationGet company informationGETReturns the company's information: name, postal and visiting address, organisation number and DatabaseNumber.

Contracttemplate, 1 operation

list_contract_templatesList contract templatesGETLists the contract templates (template number and name) that contracts can be created from.

Createorder, 1 operation

create_order_from_offerCreate order from offerPUTCreates an order from the offer and returns the offer.

Einvoice, 1 operation

send_invoice_as_einvoiceSend invoice as einvoiceGETSends the invoice as an e-invoice. With a delivery address, DeliveryCountry is required; with EU reverse charge, DeliveryDate is required.

Eprint, 1 operation

send_invoice_as_eprintSend invoice as eprintGETSends the invoice through Fortnox's e-print (print and post) service and returns the invoice.

Finish, 1 operation

finish_contractFinish contractPUTSets a contract as finished.

Label, 1 operation

list_labelsList labelsGETLists the labels (id and description) that can be put on invoices, orders and offers.

Me, 1 operation

get_current_userGet current userGETReturns the Fortnox user behind the access token: id, name, email, locale and whether they are a system administrator.

Modesofpayment, 1 operation

list_modes_of_paymentList modes of paymentGETLists the modes of payment (code, description and account) used when registering payments.

Predefinedaccount, 1 operation

list_predefined_accountsList predefined accountsGETLists the predefined accounts: each predefined account name with the account number the company uses for it.

Preview, 1 operation

preview_invoicePreview invoiceGETReturns the invoice as a PDF file without marking it as sent.

Termsofdelivery, 1 operation

list_terms_of_deliveryList terms of deliveryGETLists the terms of delivery (code and description).

Termsofpayment, 1 operation

list_terms_of_paymentList terms of paymentGETLists the terms of payment (code and description) used by customers, suppliers and invoices.

Unit, 1 operation

list_unitsList unitsGETLists the units (code and description) articles can be sold in.

Vouchersery, 1 operation

list_voucher_seriesList voucher seriesGETLists the voucher series (code and description) of the account.

Wayofdelivery, 1 operation

list_ways_of_deliveryList ways of deliveryGETLists the ways of delivery (code and description).

Use Fortnox from Claude Code, Cursor or Codex

Connect Fortnox in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its Fortnox operations become tools the client can call, next to every other integration you connected.

Claude Code

claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"

Codex (~/.codex/config.toml)

[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"

Cursor, Claude Desktop and other JSON configs

{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect Fortnox

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Connect Fortnox once
Add your Fortnox connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.
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The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.