API referenceInvoices
Download a sent reminder as PDF
Needs a token with the read:invoices scope (or write:invoices). Authentication
Try in Playground sends a real request to app.helvetly.com with a token you paste. It stays in this browser tab only (session storage) and goes to no one else.
GET
The letter of a notice already sent, by its level (1-based); 404 when that level was not sent.
bearerAuthheader
AuthorizationBearer <token>A personal API token, hvt_…, with scopes such as read:* or write:invoices
id*stringThe invoice's id.
level*integerThe notice's level, from 1.
Range
1 <= valueThe letter.
response?fileapplication/pdfFormat
binarycurl -X GET 'https://app.helvetly.com/api/v1/invoices/string/dunning/1/pdf'Example Response
"string"