curl -X POST "https://server.smartlead.ai/api/v1/campaigns/123/leads/789/category?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"category_id": 1, "pause_lead": false}'

import requests

API_KEY = "YOUR_API_KEY"

def update_lead_category(campaign_id, lead_id, category_id, pause=False):
    payload = {
        "category_id": category_id,
        "pause_lead": pause
    }
    
    response = requests.post(
        f"https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/leads/{lead_id}/category",
        params={"api_key": API_KEY},
        json=payload
    )
    
    if response.status_code == 200:
        print(f"✅ Lead categorized as {category_id}")
    
    return response.json()

# Mark as interested and pause
update_lead_category(123, 789, category_id=1, pause=True)

const API_KEY = 'YOUR_API_KEY';

async function updateCategory(campaignId, leadId, categoryId, pause = false) {
  const response = await fetch(
    `https://server.smartlead.ai/api/v1/campaigns/${campaignId}/leads/${leadId}/category?api_key=${API_KEY}`,
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ category_id: categoryId, pause_lead: pause })
    }
  );
  
  return response.json();
}

await updateCategory(123, 789, 1, true);

{
  "success": true,
  "message": "Lead category updated"
}