Authentication

NovaDataHub uses per-service API keys sent through the x-api-key header. After enabling a service, the key can be tested in the API playground or used directly in code.

Key points

Send the API key in the x-api-key header.
Each enabled API has its own key.
Unauthorized requests return an error response rather than HTML.

Common errors

401 invalid_key
403 forbidden for unauthorized private access

Reference details

Parameters, response shape, and operational notes

Parameter notes

Header: x-api-key is required on protected endpoints.
Per-service keys keep access isolated between SERP, reviews, cricket, and FX APIs.
Keep API keys server-side whenever possible instead of exposing them in public client code.

Response highlights

Protected endpoints return JSON error payloads rather than HTML redirects.
Public diagnostics such as /api/public/ping can help you verify connectivity patterns.
The same authentication pattern applies across the API families.

Operational notes

Rotate compromised keys immediately from the dashboard.
Treat missing-key, invalid-key, and forbidden responses differently in logs.
Use one integration helper so auth behavior stays consistent across your services.

Implementation checklist

Confirm the key exists and belongs to the correct enabled service.
Test the same header pattern in curl, Python, and C# before moving into production code.
Store secrets in environment variables or secure config providers instead of source files.

Code examples

Visible integration examples

curl

curl -s -H "x-api-key: YOUR_API_KEY" "https://novadatahub.com/api/public/ping"

Python

import requests
resp = requests.get('https://novadatahub.com/api/public/ping', headers={'x-api-key': 'YOUR_API_KEY'})
print(resp.json())

C# HttpClient

using var http = new HttpClient();
http.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");
var body = await http.GetStringAsync("https://novadatahub.com/api/public/ping");
Console.WriteLine(body);

Sample JSON response

{
  "status": "ok",
  "time": "2026-05-11T00:00:00Z"
}

Related resources

Move from reference docs into the next relevant workflow

Google SERP API docs

Start with the most complete public endpoint reference when validating header, key, and request construction patterns.

Open docs

Invalid API key debugging

Use the troubleshooting guide when the right service key still appears to fail in code or in production environments.

Open guide

Python integration

See a compact example of how authenticated NovaDataHub requests look in Python.

Open Python docs

C# integration

See how to attach x-api-key with HttpClient and consume JSON responses in .NET services.

Open C# docs

Create account View pricing Google SERP API page

Continue with connected pages

Authentication guide

Open the related NovaDataHub page for deeper documentation, comparisons, or implementation guidance.

Open page

Python docs

Open the related NovaDataHub page for deeper documentation, comparisons, or implementation guidance.

Open page

C# docs

Open the related NovaDataHub page for deeper documentation, comparisons, or implementation guidance.

Open page

Google SERP API docs

Open the related NovaDataHub page for deeper documentation, comparisons, or implementation guidance.

Open page