Conversion API

The TNT Growth Conversion API allows you to submit offline conversion data to advertising platforms. This enables accurate attribution of leads and sales back to the ad clicks that generated them.

Platform Guides

• Google Ads Conversions — Submit conversions, check submission status, and investigate per-conversion results
• Meta (Facebook) Conversions — Submit server-side events with user matching data
• Reddit Conversions — Submit offline events with click ID attribution
• TikTok Conversions — Submit Events API conversions with user matching data
• LinkedIn Conversions — Submit conversions with first-party tracking attribution
• Bing (Microsoft Ads) Conversions — Submit offline conversions with Microsoft Click ID attribution

Authentication

All API requests require an x-api-key header containing your client-specific API key. Contact your TNT Growth account manager to obtain your key.

curl -X POST https://flex.tntgrowth.io/api/google/conversions/add \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '[...]'

All endpoints are mounted under the /api prefix on the Flex host: https://flex.tntgrowth.io/api/....

Submission Tracking

Every conversion submission returns one or more submissionIds that you can use to check processing status. The status endpoint is shared across all platforms:

GET /api/conversions/submissions/:submissionId

See each platform's guide for details on submission and status checking.