Pixal3D.ai is an independent hosted service for turning a single picture into a textured 3D file in GLB format. You upload an image, sign in, see the credit cost and then generate and download the result.
It runs the Pixal3D model through Fal and also lets you compare it against Trellis 2 on the same input. This saves you from setting up the model yourself. A default job uses a fixed number of credits, with welcome credits to start.