creatives.searchByImage for a picture sent in the request instead of linked: `image` is the base64 of a JPEG, PNG or WebP of at most 5 MB, `mime_type` its type. Crop a screenshot to the creative itself first (uncropped phone screenshots found their creative 10 times in 30 in the bake-off, cropped ones 30 in 30). Only creatives with an embedding are searched. A daily budget caps these searches across the API; past it the answer is 429 until the next UTC day.

creatives.searchByImage for a picture sent in the request instead of linked: image is the base64 of a JPEG, PNG or WebP of at most 5 MB, mime_type its type. Crop a screenshot to the creative itself first (uncropped phone screenshots found their creative 10 times in 30 in the bake-off, cropped ones 30 in 30). Only creatives with an embedding are searched. A daily budget caps these searches across the API; past it the answer is 429 until the next UTC day. Scope creatives:write; cache none.