> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.trackingmore.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# TrackingMore Detect API

### What's _Detect_ API?
Detect API in TrackingMore means detecting couriers of a tracking number. There maybe 1 or more couriers detected for the same one tracking number. 
Usually, when there are 2 or more couriers detected, please choose **the first courier** to create a tracking, otherwise it will consume you duplicate or more quotas; 
If the tracking number imported with the first detected courier is _notfound_, please re-create the tracking number with the _2nd detected courier_. 
| But as our detect accuracy is not 100%, it's better to create a tracking/trackings via API with courier_code input if you have idea about the courier. 

Below are detect API in the existing 3 versions of TrackingMore API.

| API Version | Action of Detect API | 
| --- | --- | 
| V4 | [detect courier](https://www.trackingmore.com/docs/trackingmore/2bb962634c5f4-detect-courier) | 
| V3 | [detect courier](https://www.trackingmore.com/v3/api-index#detect-courier) | 
| V2 | [detect courier](https://www.trackingmore.com/v2/api-index.html?language=CURL#detect-courier) | 

||| Note:
||| It's suggested to use V4 detect API as V4 has more advantages than that of V2 & V3:
||| 1.  V4 detect API has more accuracy (UP TO 97%) than that of V2 & V3;
||| 2. V4 detect API is _FREE_, while V2 & V3 detect API wil consume 0.2 quota per detect.