curl -X POST "https://server.smartlead.ai/api/v1/campaigns/123/leads/789/unsubscribe?api_key=YOUR_KEY"

import requests

def unsubscribe_lead(campaign_id, lead_id):
    response = requests.post(
        f"https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/leads/{lead_id}/unsubscribe",
        params={"api_key": "YOUR_API_KEY"}
    )
    
    if response.status_code == 200:
        print(f"✅ Lead {lead_id} unsubscribed")
    
    return response.json()

unsubscribe_lead(123, 789)

{
  "success": true,
  "message": "Lead unsubscribed successfully"
}