If you want to integrate background removal with an API, Slazzer is a good option. It offers an API for developers, along with automated background removal, high-resolution cutouts and batch processing. It accepts a variety of image formats and is GDPR compliant. The service also offers a free plan and several paid subscription tiers.
Another option is Removal.AI, which offers an API and the ability to upload more than 1,000 images in a batch. It's designed to carefully handle hair and fur edges and has tools for photo editing and background removal with a seamless edge. It has a tiered pricing system with a free plan, so it's good for e-commerce, graphic design and other uses.
Remove.bg is also notable for its customizable API for developers. It can handle image sizes up to 50 megapixels, and its pricing tiers include a free account with 1 free credit and 50 free previews per month. It's good for individuals, photographers and developers who want to automate some of the drudgery of manual editing.
If you want a more general-purpose visual design service, Cutout.Pro uses AI and computer vision to automate image and video editing tasks, including background removal. It's got an API you can use to build the technology into your apps, but it's also a good general-purpose option for secure, reliable, high-performance processing of lots of visual content.