agentutility — paid x402 endpoints for autonomous agents

{
  "type": "json",
  "example": {
    "has_changes": true,
    "added_elements": 1,
    "removed_elements": 1,
    "selector_changes": [
      {
        "status": "removed",
        "selector": "#login-btn",
        "after_count": 0,
        "before_path": "html:nth-of-type(1)>body:nth-of-type(1)>div:nth-of-type(1)",
        "before_count": 1,
        "stable_selector_hint": "[data-testid=\"login\"]"
      }
    ],
    "after_element_count": 3,
    "before_element_count": 3
  }
}