## Get batch token
http -A bearer -a PERSONAL_API_TOKEN POST https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/images/v1/batch_token
## Upload multiple images using batch token
http --multipart -A bearer -a BATCH_API_TOKEN POST https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/images/v1 photo1@'~fooPhoto.jpg;type=image/jpg' photo2@'~barPhoto.jpg;type=image/jpg'
Sorry for late reply, but to keep it for future references: batch api only allows to send API request bypassing Cloudflare rate-limiting, you still need to send one request per image, it doesn’t support multi file upload