PolarBanner

Product

Image Generation API

Generate social images, ecommerce banners, Open Graph cards, and campaign artwork from structured API payloads.

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Image Generation API workflow

Image Generation API is set up for teams that need repeatable, template-driven output instead of one-off manual design work.

  • ✓Connect image generation to uploaded assets, approved templates, and API-safe render jobs.
  • ✓Keep all remote image dependencies blocked so production renders use controlled assets only.
  • ✓Use idempotency keys when the same request can be retried by an automation tool.

What this page covers

Generate social images, ecommerce banners, Open Graph cards, and campaign artwork from structured API payloads.

  • ✓Use named template layers for text, images, colors, and layout changes.
  • ✓Return a stable image URL once the render job completes.
  • ✓Keep source assets uploaded inside PolarBanner before rendering.

Production checklist

Before using this workflow in a campaign, validate the template, expected dimensions, asset ownership, and output access path.

  • ✓Render the same payload three times and compare output hashes for deterministic behavior.
  • ✓Confirm local fonts are present in the approved whitelist before launch.
  • ✓Monitor completed and failed jobs from the logs page during rollout.