Authentication

All API calls require an API Key. You can create and manage your API Keys on your developer page. Using your API Key with the REST and GraphQL APIs is slightly different.

REST API Authentication

Include a URL query parameter named apiKey with your API Key.
Example:
https://api.kelvindata.com/rest/v1/search-v2?phone=4158675309&apiKey=your-apikey-here

GraphQL Authentication

Set the Authorization header to Bearer your-apikey-here