CTC Traders API

Version and status	Select version and status
Available in Sandbox	Yes
Sandbox base URL	https://test-api.service.hmrc.gov.uk
Available in Production	Yes
Production base URL	https://api.service.hmrc.gov.uk

Overview

Use the CTC Traders API to:

send departure and arrival movement notifications to the New Computerised Transit System (NCTS)
retrieve messages sent from customs offices of departure and destination

The API endpoints relate only to Great Britain and Northern Ireland.

You can also use the HMRC sandbox environment to run tests for Great Britain and Northern Ireland transit movements.

Version 1.0 of the API supports only NCTS phase 4. Version 2.0 of the API supports only NCTS phase 5.

For a detailed overview of v1.0 of the API, see CTC Traders API phase 4 service guide. For a detailed overview of v2.0 of the API, see CTC Traders API phase 5 service guide.

You can find the changelog for v2.0 of the API in the common-transit-convention-traders GitHub wiki.

Why do these endpoints look different?

The endpoints for this API now use the Open API Specification (OAS).

The API has not changed. You do not need to make any updates to your application if you already use this API.