{"info":{"_postman_id":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","name":"Cropmark — Product Image Generation","description":"

Turn product JSON into ready-to-post marketing images.

Send a title, a price, and a photo URL. Get back a designed 1080x1080 product card,\nready to post to Instagram, drop into an email, or attach to a listing.

Try it with no key at all — open this in a browser. Change the query parameters and the image changes.

Getting started

Set the apiKey collection variable (free tier: 50 images/month, no card).
Run Generate an image. The response is binary — use Send and Download to save it.

Free tier and docs: https://cropmark.trenoxahq.com

\n","schema":"https://schema.getpostman.com/json/collection/v2.0.0/collection.json","toc":[],"owner":"57363638","collectionId":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","publishedId":"2sBY4WpxHM","public":true,"customColor":{"top-bar":"FFFFFF","right-sidebar":"303030","highlight":"D6156F"},"publishDate":"2026-08-13T08:13:18.000Z"},"item":[{"name":"Generate an image","id":"4951f82f-c8e5-4ae2-b4fb-9e152355862b","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"Content-Type","value":"application/json"}],"body":{"mode":"raw","raw":"{\n \"template\": \"product-card\",\n \"data\": {\n \"title\": \"Stoneware Coffee Mug\",\n \"subtitle\": \"350ml · Matte glaze\",\n \"price\": \"$24.00\",\n \"badge\": \"SALE\",\n \"image_url\": \"https://images.unsplash.com/photo-1544787219-7f47ccb76574?w=900\"\n }\n}","options":{"raw":{"language":"json"}}},"url":"https://api.trenoxahq.com/generate","description":"

Renders an image from template data. Returns binary image data.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Field	Required	Notes
`template`	yes	Template id. See List templates.
`data`	yes	Template fields. Unknown keys are rejected, not ignored.
`format`	no	`png` (default) or `jpeg`. JPEG is ~6x smaller.
`quality`	no	1-100, JPEG only.

Add ?response=base64 to get JSON instead of binary.

Errors return { error, message } and name the fix — a missing field lists\nevery field that is missing, not just the first.

\n","auth":{"type":"apikey","apikey":{"basicConfig":[{"key":"key","value":"X-API-Key"},{"key":"value","value":""}]},"isInherited":true,"source":{"_postman_id":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","id":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","name":"Cropmark — Product Image Generation","type":"collection"}},"urlObject":{"path":["generate"],"host":["https://api.trenoxahq.com"],"query":[],"variable":[]}},"response":[],"_postman_id":"4951f82f-c8e5-4ae2-b4fb-9e152355862b"},{"name":"Generate an image (base64 JSON)","id":"526a7ae4-d107-4746-b090-1a615b5439c1","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"Content-Type","value":"application/json"}],"body":{"mode":"raw","raw":"{\n \"template\": \"product-card\",\n \"data\": {\n \"title\": \"Stoneware Coffee Mug\",\n \"subtitle\": \"350ml · Matte glaze\",\n \"price\": \"$24.00\",\n \"badge\": \"SALE\",\n \"image_url\": \"https://images.unsplash.com/photo-1544787219-7f47ccb76574?w=900\"\n }\n}","options":{"raw":{"language":"json"}}},"url":"https://api.trenoxahq.com/generate?response=base64","description":"

Same render, returned as JSON with the image base64-encoded — easier to read in Postman than raw binary.

\n","auth":{"type":"apikey","apikey":{"basicConfig":[{"key":"key","value":"X-API-Key"},{"key":"value","value":""}]},"isInherited":true,"source":{"_postman_id":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","id":"6f7d1d7e-fa0e-41c0-88a4-ce9cff5e23fb","name":"Cropmark — Product Image Generation","type":"collection"}},"urlObject":{"path":["generate"],"host":["https://api.trenoxahq.com"],"query":[{"key":"response","value":"base64"}],"variable":[]}},"response":[],"_postman_id":"526a7ae4-d107-4746-b090-1a615b5439c1"},{"name":"Generate a JPEG","id":"11e4af3e-4996-4f27-807f-65355793ae31","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"Content-Type","value":"application/json"}],"body":{"mode":"raw","raw":"{\n \"template\": \"product-card\",\n \"data\": {\n \"title\": \"Stoneware Coffee Mug\",\n \"subtitle\": \"350ml · Matte glaze\",\n \"price\": \"$24.00\",\n \"badge\": \"SALE\",\n \"image_url\": \"https://images.unsplash.com/photo-1544787219-7f47ccb76574?w=900\"\n },\n \"format\": \"jpeg\",\n \"quality\": 85\n}","options":{"raw":{"language":"json"}}},"url":"https://api.trenoxahq.com/generate","description":"

JPEG is about 6x smaller than PNG (55KB vs 340KB) with no visible difference on a product photo. Use it for anything high volume.

Every template with its required and optional fields, types, max lengths, and a copy-pasteable example body. Generated from the same definitions that drive validation, so it cannot drift from what /generate accepts.

Public, watermarked sample render. No API key. Change the query parameters and the image changes — the fastest way to see what the API produces.

\n","urlObject":{"path":["preview"],"host":["https://api.trenoxahq.com"],"query":[{"key":"title","value":"Your Product"},{"key":"price","value":"$29.00"},{"key":"badge","value":"SALE"}],"variable":[]}},"response":[],"_postman_id":"f19f4759-5404-443b-af44-cc98704c18a9"},{"name":"Health","id":"2464fb99-f245-4d3e-b074-a2cb04d10834","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"auth":{"type":"noauth","isInherited":false},"method":"GET","header":[],"url":"https://api.trenoxahq.com/health","description":"

Service status and readiness. No key required.

\n","urlObject":{"path":["health"],"host":["https://api.trenoxahq.com"],"query":[],"variable":[]}},"response":[],"_postman_id":"2464fb99-f245-4d3e-b074-a2cb04d10834"}],"auth":{"type":"apikey","apikey":{"basicConfig":[{"key":"key","value":"X-API-Key"},{"key":"value","value":""}]}},"variable":[{"key":"baseUrl","value":"https://api.trenoxahq.com"},{"key":"apiKey","value":""}]}