Carrier tracking
GLS is a domestic carrier serving EU routes. Trace accepts the GLS carrier code (gls) and returns a normalized tracking timeline when a source provides usable data.
Use the Trace package tracking API to track GLS shipments without integrating directly with GLS's own systems. Send a tracking number, and Trace detects the carrier automatically where possible or accepts the code explicitly.
Carrier type
domestic
Regions
EU
Carrier code
gls
Automatic detection covers selected number formats. For ambiguous or unlisted formats, send the carrier code explicitly (gls); a listed code does not guarantee live events. Send a tracking number to the Trace API and receive a normalized event timeline.
curl -X POST https://api.traceapi.dev/v1/track \
-H "Authorization: Bearer trc_test_key" \
-H "Content-Type: application/json" \
-d '{"tracking_number":"YOUR_TRACKING_NUMBER"}'Yes. Trace accepts the gls carrier code and returns a normalized event timeline for GLS shipments when a source provides usable data.
Send a POST request to /v1/track with the tracking number and, for ambiguous formats, the carrier code gls. Trace returns normalized statuses and dated events with timestamps and locations.
Automatic detection covers selected number formats. For ambiguous or unlisted formats, send the carrier code explicitly (gls); a listed code does not guarantee live events.
Create an account, generate an API key, and track your first GLS package in under two minutes.