Get invoice
One invoice with its lines, totals, sent state and payments.
GET https://cotlet.dev/api/v1/fiken/invoices/{invoice_id}
read
Returns one invoice with every line, net, VAT and gross, the balance still open, whether and how it was sent, the payments registered so far and any credit notes. Read it before register_invoice_payment so a short payment is registered as partial, and before create_reminder so a paid invoice is not chased.
Parameters
| Name | Type | Description |
|---|---|---|
| invoice_id integer required | integer | Invoice ID from list_invoices or create_invoice. |
Request
curl https://cotlet.dev/api/v1/fiken/invoices/1 \
-H "Authorization: Bearer $COTLET_API_KEY"result = client.call("fiken", "get_invoice", {"invoice_id":1})const result = await cotlet.call('fiken', 'get_invoice', {"invoice_id":1});cotlet call fiken get_invoice --data '{"invoice_id":1}'Example response
{
"invoice_id": 5120288,
"invoice_number": 10031,
"customer_id": 4020977,
"customer": "Havbris Maritim AS",
"issue_date": "2026-09-16",
"due_date": "2026-09-30",
"lines": [
{
"description": "Harbour survey, September",
"quantity": 5,
"unit_price": 1400,
"vat_type": "HIGH",
"net": 7000
}
],
"net": 7000,
"vat": 1750,
"gross": 8750,
"balance": 8750,
"sent": true,
"payments": [],
"credit_notes": [],
"currency": "NOK"
}