Manage HSL commuter benefits directly from your own system using HSL’s Partner API

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During autumn 2025, we will pilot a new Partner API solution with a few selected clients. The solution enables companies to issue and manage HSL commuter benefits directly from their own digital systems (e.g. HR systems).

With the solution, you can issue HSL commuter benefits to your employees as auto-renewing season tickets without having to log in to HSL Business Portal. The flexible mobility budget will not be included in the initial version of the solution.

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How the Partner API works

With the help of HSL’s Partner API, you can add a function for issuing and managing HSL commuter benefits as auto-renewing season tickets to a digital system of your choice—provided that the system in question supports REST API.

Implementing the solution requires development work from the software partner managing the system you have chosen. HSL will provide an interface key that your software partner can use to build an integration with HSL’s Partner API. You can decide how you want to issue HSL commuter benefits in your own system. For example, you can include the function in the process of adding a new employee.

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How to obtain an interface key from HSL

If you are not yet a client:

1. Open an account for your company in the HSL Business Portal on HSL’s website.

2. Within a few days, you will receive an email invitation to start using the HSL Business Portal. Create a user account by following the instructions in the email invitation and log in to the portal.

If you already are a client:

3. In the HSL Business Portal, open the tab displaying the company information. At the bottom of the page, there is a button you can click to create an interface key needed for building the Partner API integration.

Would you like to try the Partner API?

In the first phase, we will pilot the Partner API with a few selected clients in order to collect feedback. If you are interested in trying out the solution, please contact our corporate customer service at [email protected].