Keen

This server handles AI image upscaling through a pay-per-use model with x402 payments. It lets you upscale images to either 2x or 4x their original resolution, presumably by exposing upscaling operations that Claude can call when you need higher resolution versions of images. You'd reach for this when working with low-resolution images that need enhancement for print, detailed analysis, or presentation purposes. The x402 payment integration means you're paying only for the upscaling operations you actually use rather than a flat subscription, which makes sense for sporadic image enhancement needs.