How do I change image quality?

Use the "quality"  integer min: 1  max: 100  flag in your requests to change the quality for JPG/WebP outputs, as shown in the example below.

{
  "template": "MvqYnLpgQwQ0DPKxye",
	"formats": ["jpg"],
	"quality": 85,
	"modifications": {
    "objects": [
      {
        "name": "title",
        "text": "Hello World",
        "color": "#FF5733"
      },
      {
        "name": "avatar",
        "background-image": "https://example.com/photo.jpg"
      },
      {
        "name": "background",
        "background-color": "#d6d0e15e"
      }
    ]
  }
}