This is a real render from the API with the example values below, at 1200×630.
For shops and marketplaces: the discount sits on a starburst sticker over the photo, the price is huge and the old price is crossed out next to it. Render one per product from your catalogue, or per campaign.
Fields
Every field is optional. Long text shrinks to fit instead of overflowing; an image field takes a public URL that we fetch on our side.
| Field | Type | Description | Example |
|---|---|---|---|
name |
text | Product name. default: Product name | Studio Wireless Headphones |
brand |
text | Brand or shop name shown above the product. | Aurora Audio |
price |
text | Price as you want it printed, with the currency. | $139 |
old_price |
text | Price before the discount, struck through. | $199 |
discount |
text | Discount on the sticker, e.g. -30%. | -30% |
cta |
text | Call to action on the button. default: Shop now | — |
site |
text | Your domain or a short URL. | aurora-audio.com |
photo |
image URL | Product photo, cropped to a circle. | https://example.com/images/headphones.jpg |
accent |
colour | Brand colour as hex, e.g. #6366f1. Drives buttons, highlights and the background glow. default: #e11d48 | #e11d48 |
theme |
dark | light | Colour scheme: dark or light. default: light | — |
Render it with one request
Use the slug as template. The response holds the URL of the finished PNG; ?wait=true keeps the connection open until it is ready.
curl -X POST "https://imageapi.benchkithq.com/v1/images?wait=true" \
-H "Authorization: Bearer sk_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"template": "product-sale",
"modifications": {
"name": "Studio Wireless Headphones",
"brand": "Aurora Audio",
"price": "$139",
"old_price": "$199",
"discount": "-30%",
"site": "aurora-audio.com",
"photo": "https://example.com/images/headphones.jpg"
}
}'Or paste a signed URL into og:image
For static sites, Webflow, Shopify and no-code tools: put the fields in the query string and sign it with your signing secret. The first request renders the image, every later one is a redirect to the cached file. How to compute the signature.
<meta property="og:image" content="https://imageapi.benchkithq.com/i/acc_YOUR_ACCOUNT_ID/product-sale.png?brand=Aurora%20Audio&discount=-30%25&name=Studio%20Wireless%20Headphones&old_price=%24199&price=%24139&site=aurora-audio.com&s=YOUR_SIGNATURE">Make it yours
accent and theme change per request. For anything more, copy the template into your account: you get an ordinary HTML template with the same fields that you can edit in the dashboard or through the API. If the slug is free on your account, the copy takes it — your integrations switch to your version without changing a line.
curl -X POST "https://imageapi.benchkithq.com/v1/templates/library/product-sale/copy" \
-H "Authorization: Bearer sk_live_YOUR_KEY"More OG image templates
Blog post
Job posting
Event
Podcast episode
Changelog / release
Documentation page
Real estate listing
Product card
Course lesson
Recipe
Video thumbnail
Newsletter issue
Quote card
Case study / testimonial
GitHub repository
Feature announcement
Profile / author card
Comparison (A vs B)
Stat highlight