Get contacts list

{
  "success": true,
  "data": {
    "contacts": [
      {
        "id": "6ba7b810-9dad-11d1-80b4-00c04fd430c8",
        "phone_number": "+1234567890",
        "format_e164": "+1234567890",
        "format_international": "+1 234-567-890",
        "format_national": "(234) 567-890",
        "format_rfc": "tel:+1-234-567-890",
        "country_code": "1",
        "region_code": "US",
        "available_channels": "sms,whatsapp",
        "default_channel": "sms",
        "opt_out": false,
        "is_inherited": false,
        "created_at": "2026-03-31T15:21:52.1922085+00:00",
        "updated_at": null
      }
    ],
    "pagination": {
      "page": 1,
      "page_size": 20,
      "total_count": 150,
      "total_pages": 8,
      "has_more": true,
      "cursors": null
    }
  },
  "error": null,
  "meta": {
    "request_id": "req_7X9zKp2jDw",
    "timestamp": "2026-03-31T15:21:52.1922247+00:00",
    "version": "v3"
  }
}

{
  "success": false,
  "data": null,
  "error": {
    "code": "VALIDATION_005",
    "message": "Page must be greater than 0",
    "details": null,
    "doc_url": "https://docs.sent.dm/docs/reference/api/error-catalog"
  },
  "meta": {
    "request_id": "req_7X9zKp2jDw",
    "timestamp": "2026-03-31T15:21:52.1922264+00:00",
    "version": "v3"
  }
}

{
  "success": false,
  "data": null,
  "error": {
    "code": "RESOURCE_001",
    "message": "Contact not found with the specified phone number",
    "details": null,
    "doc_url": "https://docs.sent.dm/docs/reference/api/error-catalog"
  },
  "meta": {
    "request_id": "req_7X9zKp2jDw",
    "timestamp": "2026-03-31T15:21:52.192227+00:00",
    "version": "v3"
  }
}

{
  "success": false,
  "data": null,
  "error": {
    "code": "INTERNAL_001",
    "message": "An unexpected error occurred. Please contact support with request ID: req_7X9zKp2jDw",
    "details": null,
    "doc_url": "https://docs.sent.dm/docs/reference/api/error-catalog"
  },
  "meta": {
    "request_id": "req_7X9zKp2jDw",
    "timestamp": "2026-03-31T15:21:52.1922274+00:00",
    "version": "v3"
  }
}