One version's image

file is {id}@{revision}.svg or .png. A signed link from diagram_render or GET /v1/diagrams/{id}/render (query e and s) needs no key and works for 7 days, and draws the plain version (it ignores from). Without one, send an API key for the diagram's workspace, or the website's session. Each version's image is drawn when it is saved and kept, so it never changes. Its bottom-right line is its address and date, such as zindex.ai/d/dgm_7Q2kD9a1B2c3@5 · 2026-04-01, the same on every plan (versions saved before it print {id} | Rev N - {date}): the ID and revision in it open that version (GET /v1/diagrams/{id}?revision=5 or diagram_get) for the diagram's workspace, and a published one with no key (GET /v1/public/diagrams/{id}@{revision}).