curl https://api.sendpilot.ai/v1/inbox/senders \
  -H "X-API-Key: YOUR_API_KEY"

{
  "senders": [
    {
      "id": "sender_abc123",
      "name": "Jane Smith",
      "linkedinUrl": "https://www.linkedin.com/in/jane-smith",
      "status": "active",
      "dailyMessageLimit": 100,
      "messagesSentToday": 25,
      "remainingMessages": 75
    },
    {
      "id": "sender_def456",
      "name": "John Doe",
      "linkedinUrl": "https://www.linkedin.com/in/john-doe",
      "status": "active",
      "dailyMessageLimit": 100,
      "messagesSentToday": 0,
      "remainingMessages": 100
    }
  ],
  "total": 2
}