01
API credentials
An Application Access Token and an Application Key. Both are required on every request — the token in the Authorization header, the key in X-Application-Key. Create a sales channel in your dashboard to generate them instantly — no request needed.
02
Webhook endpoint
A publicly-reachable HTTPS endpoint that accepts JSON POST requests. Localhost works in development via a tunnel. You verify the HMAC-SHA256 signature on every payload before processing.
03
Artwork files
Your artwork file — PDF, TIFF, JPG or PNG — reachable over HTTPS without authentication. RGB colour, up to 50 MB and 15,000 px per side. Multi-page PDFs are one page per layer. We fetch the file and build the correct print files when we render the job.