Fortnox MCP tools

Fortnox has 11 operations on the Cotlet MCP server, in fortnox_read and fortnox_write. Your agent picks one in `operation`; the tool carries each operation's input schema. Open an operation for its schema and an example call.

MCP server
https://cotlet.dev/mcp/v1
MCP tools
fortnox_read, fortnox_write
Connects with
Your own Fortnox user, with access to Fakturering for invoices and payments and to Bokföring for vouchers
Integration page
Fortnox

Read (5)

Return data and change nothing in the account.

Fortnox Endpoints: Read
OperationDescription
list_customers Customers in the customer register with number, name, organisation number and email.
list_invoices Customer invoices with number, customer, dates, total and remaining balance.
get_invoice One invoice with its rows, totals, booked state and payments.
list_vouchers Vouchers in a voucher series and date range with description and total.
list_financial_years Financial years that exist in the company, with start and end dates.

Write (6)

Change the account. Calls marked Confirm wait for the user to approve them.

Fortnox Endpoints: Write
OperationDescription
create_customer Add a customer to the customer register with name, email and organisation number.
create_invoice Confirm Save a customer invoice with dates and rows. It is saved, not booked and not sent.
bookkeep_invoice Confirm Book a saved invoice. A booked invoice can no longer be changed.
send_invoice Confirm Send a booked invoice to the customer by email, e-invoice or print service.
register_payment Confirm Register a received payment, full or partial, against a customer invoice.
create_voucher Confirm Book a voucher with rows of account, debit and credit in a voucher series.

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