> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pearcheck.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

Authentication is performed via HTTP header X-API-KEY. Provide your API key as the value. All API requests must be made over HTTPS.

```bash theme={null}
curl https://api.pearcheck.com/ \
  -H "X-API-KEY: your-secret-api-key-123" \
  

```