List outstanding invoices

Open invoices of debtors (customers who owe you) or creditors (suppliers you owe), with the open amount.

GET https://cotlet.dev/api/v1/e-boekhouden/outstanding-invoices

read

Returns invoices that are not fully paid. Choose debtors (D) or creditors (C), and narrow to one invoice number. Each item has the invoice number, relation and open amount. Use limit and offset to page through a long list.

Parameters

Parameters: list_outstanding_invoices
NameTypeDescription
cred_deb enum enum D for debtors or C for creditors.
invoice_number string string Only this invoice number.
limit integer integer Number of items to return.
offset integer integer Number of items to skip, for the next page.

Request

cURL
curl https://cotlet.dev/api/v1/e-boekhouden/outstanding-invoices \
  -H "Authorization: Bearer $COTLET_API_KEY"
Python
result = client.call("e-boekhouden", "list_outstanding_invoices")
Node.js
const result = await cotlet.call('e-boekhouden', 'list_outstanding_invoices');
CLI
cotlet call e-boekhouden list_outstanding_invoices

Example response

JSON

{
  "invoices": [
    {
      "invoice_number": "2026-0151",
      "relation_id": 1068,
      "relation_name": "Bakkerij Smit",
      "invoice_date": "2026-09-28",
      "open_amount": 363
    },
    {
      "invoice_number": "2026-0143",
      "relation_id": 1042,
      "relation_name": "Studio Noord BV",
      "invoice_date": "2026-10-12",
      "open_amount": 1028.5
    }
  ],
  "total": 2
}

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