Image Search (Optional)

If you want the agent to fetch reference images (instead of generating new ones), supply a SerpAPI key dedicated to image search.

Variable	Description
IMAGE_SEARCH_SERPAPI_API_KEY	SerpAPI key with image-search quota. When provided, the tool server uses the SerpAPI image endpoint; otherwise it relies on DuckDuckGo image scraping.

Set the variable inside docker/.stack.env, restart the tool server, and then ask the agent for images to verify that the SerpAPI quota is being used by checking the SerpAPI dashboard.