You have your Location ID and API key. Let’s make a real call.
This retrieves the first 5 contacts in your account — a simple read operation that confirms everything is working.
curl -X GET "https://services.leadconnectorhq.com/contacts/?locationId=YOUR_LOCATION_ID&limit=5" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Version: 2021-07-28"
const response = await fetch(
'https://services.leadconnectorhq.com/contacts/?locationId=YOUR_LOCATION_ID&limit=5',
{
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Version': '2021-07-28'
}
}
);
const data = await response.json();
console.log(data);
import requests
response = requests.get(
'https://services.leadconnectorhq.com/contacts/',
params={'locationId': 'YOUR_LOCATION_ID', 'limit': 5},
headers={
'Authorization': 'Bearer YOUR_API_KEY',
'Version': '2021-07-28'
}
)
print(response.json())
What you get back
{
"contacts": [
{
"id": "abc123",
"name": "Jane Smith",
"email": "jane@example.com",
"phone": "+15551234567",
"tags": ["lead", "website-visitor"],
"dateAdded": "2025-01-15T10:30:00.000Z"
}
],
"meta": {
"total": 142,
"currentPage": 1,
"nextPage": 2
}
}
The meta object tells you the total number of matching records and how to paginate. See Making Requests for pagination details.
Common errors
| Status | Meaning | Fix |
|---|
401 Unauthorized | Missing or invalid token | Check your Authorization: Bearer header |
403 Forbidden | Token lacks the required scope | Go to Private Integrations and add the Contacts (Read) scope |
422 Unprocessable | Missing required field | Check the API reference for required parameters |
429 Too Many Requests | Rate limit hit | Back off and retry — max 100 requests / 10 seconds |
Once reads work, try a write:
curl -X POST "https://services.leadconnectorhq.com/contacts/" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Version: 2021-07-28" \
-H "Content-Type: application/json" \
-d '{
"locationId": "YOUR_LOCATION_ID",
"firstName": "Test",
"lastName": "Contact",
"email": "test@example.com"
}'
What’s next
Contacts API
Full reference for creating, updating, and searching contacts
Conversations API
Send messages and manage conversation threads
Making Requests
Pagination, filtering, sorting, and error handling patterns
Webhooks
React to real-time events instead of polling
Last modified on March 6, 2026