Authentication

Authenticate API requests safely with the X-Api-Key header.

Send your API key in the X-Api-Key header on every authenticated request.

X-Api-Key: your-api-key

curl https://api.uncaptcha.io/v1/balance/get \
  --header "X-Api-Key: $UNCAPTCHA_API_KEY"

Authentication errors

{
  "success": false,
  "message": "X-Api-Key header is missing"
}

An absent, invalid, disabled, expired, or unauthorized key is rejected before a solve starts and is not charged.