Quickly Validate QST Numbers with Our New Automated Service
You can now automatically validate the QST registration numbers of each of your suppliers and other partners with the new application programming interface (API) that you must program from our website.
Save time and gain efficiency
Up until now, you had to manually validate QST registration numbers by using the Validate a QST Registration Number online service.
With our new automated service, as with our online service, you can validate the effective date of the QST registration and the name of your suppliers.
To use the new automated API service, you must connect the service to your own tools or services. For more information, see Application Programming Interface (API) Used to Validate a QST Registration Number on our website.