Launched June 12th, 2026. Screenshot quality is improving quickly, and feedback is welcome. Send feedback

Agent workflow

Generate app screenshots with OpenAI Codex.

Codex works best when it edits a structured render request instead of trying to design screenshots by hand.

Example request

# agent-readable discovery
curl https://appscreenshotapi.com/llms.txt
curl https://appscreenshotapi.com/openapi.json

# deterministic render
curl -X POST https://api.appscreenshotapi.com/v1/renders --data @store-screenshots.json

Implementation checklist

  • Give Codex real captures, not a request to invent UI.
  • Ask it to write or update store-screenshots.json.
  • Render with a test key first.
  • Use lint findings as the next revision prompt.

Good Codex task shape

The prompt should ask for an API request body and a review checklist. That keeps Codex in code-editing territory and leaves pixel output to the renderer.

Rendered examples

One API call can produce the whole visual set.

View gallery